200121011210112 has 64 divisors (see below), whose sum is σ = 531573515189760. Its totient is φ = 66706742822400.

The previous prime is 200121011210101. The next prime is 200121011210117. The reversal of 200121011210112 is 211012110121002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×200121011210112² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200121011210091 and 200121011210100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121011210117) 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, 114231987 + ... + 115970637.

It is an arithmetic number, because the mean of its divisors is an integer number (8305836174840).

Almost surely, 2^{200121011210112} is an apocalyptic number.

It is an amenable number.

200121011210112 is an abundant number, since it is smaller than the sum of its proper divisors (331452503979648).

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

200121011210112 is a wasteful number, since it uses less digits than its factorization.

200121011210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038411 (or 2038399 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 200121011210112 its reverse (211012110121002), we get a palindrome (411133121331114).

The spelling of 200121011210112 in words is "two hundred trillion, one hundred twenty-one billion, eleven million, two hundred ten thousand, one hundred twelve".