120221211021210 has 64 divisors (see below), whose sum is σ = 345250657301760. Its totient is φ = 29592913481280.

The previous prime is 120221211021203. The next prime is 120221211021211. The reversal of 120221211021210 is 12120112122021.

120221211021210 is a `hidden beast` number, since 1 + 2 + 0 + 221 + 211 + 0 + 21 + 210 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (120221211021211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17125525126 + ... + 17125532145.

It is an arithmetic number, because the mean of its divisors is an integer number (5394541520340).

Almost surely, 2^{120221211021210} is an apocalyptic number.

120221211021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120221211021210 is an abundant number, since it is smaller than the sum of its proper divisors (225029446280550).

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

120221211021210 is a wasteful number, since it uses less digits than its factorization.

120221211021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34251057300 (or 34251057294 counting only the distinct ones).

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

Adding to 120221211021210 its reverse (12120112122021), we get a palindrome (132341323143231).

The spelling of 120221211021210 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred eleven million, twenty-one thousand, two hundred ten".