12221000210120 has 32 divisors (see below), whose sum is σ = 29612423587320. Its totient is φ = 4512369308160.

The previous prime is 12221000210101. The next prime is 12221000210203. The reversal of 12221000210120 is 2101200012221.

It can be written as a sum of positive squares in 4 ways, for example, as 10064971981156 + 2156028228964 = 3172534^2 + 1468342^2 .

It is a super-2 number, since 2×12221000210120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12221000210095 and 12221000210104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11750961221 + ... + 11750962260.

Almost surely, 2^{12221000210120} is an apocalyptic number.

12221000210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221000210120 is an abundant number, since it is smaller than the sum of its proper divisors (17391423377200).

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

12221000210120 is a wasteful number, since it uses less digits than its factorization.

12221000210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23501923505 (or 23501923501 counting only the distinct ones).

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

Adding to 12221000210120 its reverse (2101200012221), we get a palindrome (14322200222341).

The spelling of 12221000210120 in words is "twelve trillion, two hundred twenty-one billion, two hundred ten thousand, one hundred twenty".