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20210012122102 = 2111117518220391
BaseRepresentation
bin1001001100001100000101…
…00101111110101111110110
32122120001120111022200200021
410212012002211332233312
510122110101100401402
6110552203522435354
74154060640426145
oct446060245765766
978501514280607
1020210012122102
116492021a72810
122324a04202b5a
13b37a46975aca
144dc253d3975c
15250a972aed37
hex12618297ebf6

20210012122102 has 16 divisors (see below), whose sum is σ = 33071228884224. Its totient is φ = 9186285825000.

The previous prime is 20210012122093. The next prime is 20210012122103. The reversal of 20210012122102 is 20122121001202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210012122103) 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, 1651674 + ... + 6568717.

It is an arithmetic number, because the mean of its divisors is an integer number (2066951805264).

Almost surely, 220210012122102 is an apocalyptic number.

20210012122102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20210012122102 is a deficient number, since it is larger than the sum of its proper divisors (12861216762122).

20210012122102 is a wasteful number, since it uses less digits than its factorization.

20210012122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8332155.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20210012122102 its reverse (20122121001202), we get a palindrome (40332133123304).

The spelling of 20210012122102 in words is "twenty trillion, two hundred ten billion, twelve million, one hundred twenty-two thousand, one hundred two".

Divisors: 1 2 11 22 111751 223502 1229261 2458522 8220391 16440782 90424301 180848602 918636914641 1837273829282 10105006061051 20210012122102