121220232332100 has 144 divisors (see below), whose sum is σ = 382629318697920. Its totient is φ = 29385633484800.

The previous prime is 121220232332093. The next prime is 121220232332123. The reversal of 121220232332100 is 1233232022121.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 90178524 + ... + 91512876.

Almost surely, 2^{121220232332100} is an apocalyptic number.

121220232332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121220232332100 is an abundant number, since it is smaller than the sum of its proper divisors (261409086365820).

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

121220232332100 is a wasteful number, since it uses less digits than its factorization.

121220232332100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361910 (or 1361903 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121220232332100 its reverse (1233232022121), we get a palindrome (122453464354221).

The spelling of 121220232332100 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred thirty-two million, three hundred thirty-two thousand, one hundred".