121232332100 has 108 divisors (see below), whose sum is σ = 289357615344. Its totient is φ = 44055000000.

The previous prime is 121232332079. The next prime is 121232332201. The reversal of 121232332100 is 1233232121.

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 35 ways as a sum of consecutive naturals, for example, 27234875 + ... + 27239325.

Almost surely, 2^121232332100 is an apocalyptic number.

121232332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121232332100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144678807672).

121232332100 is an abundant number, since it is smaller than the sum of its proper divisors (168125283244).

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

121232332100 is a wasteful number, since it uses less digits than its factorization.

121232332100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738 (or 6720 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121232332100 its reverse (1233232121), we get a palindrome (122465564221).

The spelling of 121232332100 in words is "one hundred twenty-one billion, two hundred thirty-two million, three hundred thirty-two thousand, one hundred".