120102202121 has 16 divisors (see below), whose sum is σ = 132088320000. Its totient is φ = 108296852880.

The previous prime is 120102202111. The next prime is 120102202133. The reversal of 120102202121 is 121202201021.

It is a cyclic number.

It is not a de Polignac number, because 120102202121 - 2¹⁰ = 120102201097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120102202096 and 120102202105.

It is not an unprimeable number, because it can be changed into a prime (120102202111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787880 + ... + 927878.

It is an arithmetic number, because the mean of its divisors is an integer number (8255520000).

Almost surely, 2^120102202121 is an apocalyptic number.

120102202121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120102202121 is a deficient number, since it is larger than the sum of its proper divisors (11986117879).

120102202121 is a wasteful number, since it uses less digits than its factorization.

120102202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140644.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 120102202121 its reverse (121202201021), we get a palindrome (241304403142).

It can be divided in two parts, 120102 and 202121, that added together give a palindrome (322223).

The spelling of 120102202121 in words is "one hundred twenty billion, one hundred two million, two hundred two thousand, one hundred twenty-one".