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2021202020012 = 227677106625977
BaseRepresentation
bin11101011010011001000…
…001110100011010101100
321011020002001012001200112
4131122121001310122230
5231103410204120022
64144305525515152
7266012161462340
oct35323101643254
97136061161615
102021202020012
1170a20693627a
12287880572ab8
131187a1c8ca46
146db8066d620
15378995328e2
hex1d6990746ac

2021202020012 has 24 divisors (see below), whose sum is σ = 4048375132704. Its totient is φ = 864949917312.

The previous prime is 2021202020011. The next prime is 2021202020017. The reversal of 2021202020012 is 2100202021202.

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

It is not an unprimeable number, because it can be changed into a prime (2021202020011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53294033 + ... + 53331944.

It is an arithmetic number, because the mean of its divisors is an integer number (168682297196).

Almost surely, 22021202020012 is an apocalyptic number.

It is an amenable number.

2021202020012 is an abundant number, since it is smaller than the sum of its proper divisors (2027173112692).

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

2021202020012 is a wasteful number, since it uses less digits than its factorization.

2021202020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106626665 (or 106626663 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2021202020012 its reverse (2100202021202), we get a palindrome (4121404041214).

The spelling of 2021202020012 in words is "two trillion, twenty-one billion, two hundred two million, twenty thousand, twelve".

Divisors: 1 2 4 7 14 28 677 1354 2708 4739 9478 18956 106625977 213251954 426503908 746381839 1492763678 2985527356 72185786429 144371572858 288743145716 505300505003 1010601010006 2021202020012