121120101210120 has 32 divisors (see below), whose sum is σ = 363360303630720. Its totient is φ = 32298693656000.

The previous prime is 121120101210061. The next prime is 121120101210127. The reversal of 121120101210120 is 21012101021121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121120101210120.

It is not an unprimeable number, because it can be changed into a prime (121120101210127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504667088256 + ... + 504667088495.

It is an arithmetic number, because the mean of its divisors is an integer number (11355009488460).

Almost surely, 2^{121120101210120} is an apocalyptic number.

121120101210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120101210120 is an abundant number, since it is smaller than the sum of its proper divisors (242240202420600).

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

121120101210120 is a wasteful number, since it uses less digits than its factorization.

121120101210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009334176765 (or 1009334176761 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121120101210120 its reverse (21012101021121), we get a palindrome (142132202231241).

The spelling of 121120101210120 in words is "one hundred twenty-one trillion, one hundred twenty billion, one hundred one million, two hundred ten thousand, one hundred twenty".