120102202111221 has 40 divisors (see below), whose sum is σ = 197454161355264. Its totient is φ = 72145061009280.

The previous prime is 120102202111217. The next prime is 120102202111231. The reversal of 120102202111221 is 122111202201021.

120102202111221 is a `hidden beast` number, since 1 + 2 + 0 + 10 + 220 + 211 + 1 + 221 = 666.

It is not a de Polignac number, because 120102202111221 - 2² = 120102202111217 is a prime.

It is a super-2 number, since 2×120102202111221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120102202111194 and 120102202111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102202111231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 596336661 + ... + 596538026.

Almost surely, 2^{120102202111221} is an apocalyptic number.

120102202111221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120102202111221 is a deficient number, since it is larger than the sum of its proper divisors (77351959244043).

120102202111221 is a wasteful number, since it uses less digits than its factorization.

120102202111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192874823 (or 1192874814 counting only the distinct ones).

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

Adding to 120102202111221 its reverse (122111202201021), we get a palindrome (242213404312242).

The spelling of 120102202111221 in words is "one hundred twenty trillion, one hundred two billion, two hundred two million, one hundred eleven thousand, two hundred twenty-one".