121120002121100 has 36 divisors (see below), whose sum is σ = 263184146896944. Its totient is φ = 48382794895680.

The previous prime is 121120002121073. The next prime is 121120002121103. The reversal of 121120002121100 is 1121200021121.

It is not an unprimeable number, because it can be changed into a prime (121120002121103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 814999739 + ... + 815148338.

Almost surely, 2^{121120002121100} is an apocalyptic number.

121120002121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120002121100 is an abundant number, since it is smaller than the sum of its proper divisors (142064144775844).

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

121120002121100 is a wasteful number, since it uses less digits than its factorization.

121120002121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630148834 (or 1630148827 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121120002121100 its reverse (1121200021121), we get a palindrome (122241202142221).

It can be divided in two parts, 1211200021 and 21100, that added together give a palindrome (1211221121).

The spelling of 121120002121100 in words is "one hundred twenty-one trillion, one hundred twenty billion, two million, one hundred twenty-one thousand, one hundred".