121112000112100 has 36 divisors (see below), whose sum is σ = 262963995842548. Its totient is φ = 48416974128000.

The previous prime is 121112000112091. The next prime is 121112000112157. The reversal of 121112000112100 is 1211000211121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 64855189905984 + 56256810206116 = 8053272^2 + 7500454^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347648991 + ... + 347997190.

Almost surely, 2^{121112000112100} is an apocalyptic number.

121112000112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112000112100 is an abundant number, since it is smaller than the sum of its proper divisors (141851995730448).

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

121112000112100 is a wasteful number, since it uses less digits than its factorization.

121112000112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695647936 (or 695647929 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121112000112100 its reverse (1211000211121), we get a palindrome (122323000323221).

The spelling of 121112000112100 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred twelve thousand, one hundred".