120021222012210 has 48 divisors (see below), whose sum is σ = 312352656197400. Its totient is φ = 31975148540160.

The previous prime is 120021222012187. The next prime is 120021222012233. The reversal of 120021222012210 is 12210222120021.

It is a happy number.

120021222012210 is a `hidden beast` number, since 1 + 20 + 0 + 212 + 220 + 1 + 2 + 210 = 666.

It is an interprime number because it is at equal distance from previous prime (120021222012187) and next prime (120021222012233).

It can be written as a sum of positive squares in 4 ways, for example, as 97172888932161 + 22848333080049 = 9857631^2 + 4779993^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 635543881 + ... + 635732700.

Almost surely, 2^{120021222012210} is an apocalyptic number.

120021222012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120021222012210 is an abundant number, since it is smaller than the sum of its proper divisors (192331434185190).

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

120021222012210 is a wasteful number, since it uses less digits than its factorization.

120021222012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271277643 (or 1271277640 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120021222012210 its reverse (12210222120021), we get a palindrome (132231444132231).

The spelling of 120021222012210 in words is "one hundred twenty trillion, twenty-one billion, two hundred twenty-two million, twelve thousand, two hundred ten".