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2020111012220 = 225767332143081
BaseRepresentation
bin11101011001010111111…
…111111101000101111100
321011010021000021010100112
4131121113333331011330
5231044141404342340
64144005353445152
7265643143200530
oct35312777750574
97133230233315
102020111012220
117097a7002a44
122876171107b8
13118659c39cc2
146dab97d1bc0
1537833876065
hex1d657ffd17c

2020111012220 has 48 divisors (see below), whose sum is σ = 4848988767168. Its totient is φ = 692506298880.

The previous prime is 2020111012219. The next prime is 2020111012229. The reversal of 2020111012220 is 222101110202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2020111012195 and 2020111012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020111012229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128921 + ... + 2014160.

It is an arithmetic number, because the mean of its divisors is an integer number (101020599316).

Almost surely, 22020111012220 is an apocalyptic number.

2020111012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020111012220 is an abundant number, since it is smaller than the sum of its proper divisors (2828877754948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2020111012220 is a wasteful number, since it uses less digits than its factorization.

2020111012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149830 (or 2149828 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2020111012220 its reverse (222101110202), we get a palindrome (2242212122422).

The spelling of 2020111012220 in words is "two trillion, twenty billion, one hundred eleven million, twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 6733 13466 26932 33665 47131 67330 94262 134660 188524 235655 471310 942620 2143081 4286162 8572324 10715405 15001567 21430810 30003134 42861620 60006268 75007835 150015670 300031340 14429364373 28858728746 57717457492 72146821865 101005550611 144293643730 202011101222 288587287460 404022202444 505027753055 1010055506110 2020111012220