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20200101112220 = 2256903114631181
BaseRepresentation
bin1001001011111001100111…
…10110011110100110011100
32122112002222210000020001012
410211330303312132212130
510121424301341042340
6110543444235234352
74153260223302461
oct445746366364634
978462883006035
1020200101112220
1164888a650a357
122322ab8ba89b8
13b36b27545a13
144db99393d668
152506b712e565
hex125f33d9e99c

20200101112220 has 24 divisors (see below), whose sum is σ = 42420829744608. Its totient is φ = 8079922843200.

The previous prime is 20200101112097. The next prime is 20200101112231. The reversal of 20200101112220 is 2221110100202.

It is a junction number, because it is equal to n+sod(n) for n = 20200101112195 and 20200101112204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5934971 + ... + 8696210.

It is an arithmetic number, because the mean of its divisors is an integer number (1767534572692).

Almost surely, 220200101112220 is an apocalyptic number.

20200101112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200101112220 is an abundant number, since it is smaller than the sum of its proper divisors (22220728632388).

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

20200101112220 is a wasteful number, since it uses less digits than its factorization.

20200101112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14700221 (or 14700219 counting only the distinct ones).

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

Adding to 20200101112220 its reverse (2221110100202), we get a palindrome (22421211212422).

The spelling of 20200101112220 in words is "twenty trillion, two hundred billion, one hundred one million, one hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 69031 138062 276124 345155 690310 1380620 14631181 29262362 58524724 73155905 146311810 292623620 1010005055611 2020010111222 4040020222444 5050025278055 10100050556110 20200101112220