121033212112100 has 36 divisors (see below), whose sum is σ = 262646800455984. Its totient is φ = 48412412923680.

The previous prime is 121033212112081. The next prime is 121033212112147. The reversal of 121033212112100 is 1211212330121.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 5304482 + ... + 16437881.

Almost surely, 2^{121033212112100} is an apocalyptic number.

121033212112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121033212112100 is an abundant number, since it is smaller than the sum of its proper divisors (141613588343884).

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

121033212112100 is a wasteful number, since it uses less digits than its factorization.

121033212112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21798044 (or 21798037 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121033212112100 its reverse (1211212330121), we get a palindrome (122244424442221).

The spelling of 121033212112100 in words is "one hundred twenty-one trillion, thirty-three billion, two hundred twelve million, one hundred twelve thousand, one hundred".