120102011122221 has 24 divisors (see below), whose sum is σ = 174758474816640. Its totient is φ = 79480108876896.

The previous prime is 120102011122211. The next prime is 120102011122273. The reversal of 120102011122221 is 122221110201021.

120102011122221 is a `hidden beast` number, since 120 + 1 + 0 + 201 + 1 + 122 + 221 = 666.

It is not a de Polignac number, because 120102011122221 - 2⁶ = 120102011122157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120102011122194 and 120102011122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102011122201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76373625 + ... + 77930318.

It is an arithmetic number, because the mean of its divisors is an integer number (7281603117360).

Almost surely, 2^{120102011122221} is an apocalyptic number.

It is an amenable number.

120102011122221 is a deficient number, since it is larger than the sum of its proper divisors (54656463694419).

120102011122221 is a wasteful number, since it uses less digits than its factorization.

120102011122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154304585 (or 154304582 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120102011122221 its reverse (122221110201021), we get a palindrome (242323121323242).

The spelling of 120102011122221 in words is "one hundred twenty trillion, one hundred two billion, eleven million, one hundred twenty-two thousand, two hundred twenty-one".