122120021210 has 64 divisors (see below), whose sum is σ = 242011203840. Its totient is φ = 43999288320.

The previous prime is 122120021207. The next prime is 122120021239. The reversal of 122120021210 is 12120021221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6190082 + ... + 6209778.

It is an arithmetic number, because the mean of its divisors is an integer number (3781425060).

Almost surely, 2^122120021210 is an apocalyptic number.

122120021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122120021210 is a deficient number, since it is larger than the sum of its proper divisors (119891182630).

122120021210 is a wasteful number, since it uses less digits than its factorization.

122120021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20231.

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

Adding to 122120021210 its reverse (12120021221), we get a palindrome (134240042431).

The spelling of 122120021210 in words is "one hundred twenty-two billion, one hundred twenty million, twenty-one thousand, two hundred ten".