122102971221 has 16 divisors (see below), whose sum is σ = 202976368128. Its totient is φ = 63430114800.

The previous prime is 122102971217. The next prime is 122102971259. The reversal of 122102971221 is 122179201221.

It is not a de Polignac number, because 122102971221 - 2² = 122102971217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102971201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264291915 + ... + 264292376.

It is an arithmetic number, because the mean of its divisors is an integer number (12686023008).

Almost surely, 2^122102971221 is an apocalyptic number.

122102971221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122102971221 is a deficient number, since it is larger than the sum of its proper divisors (80873396907).

122102971221 is a wasteful number, since it uses less digits than its factorization.

122102971221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528584312.

The product of its (nonzero) digits is 2016, while the sum is 30.

The spelling of 122102971221 in words is "one hundred twenty-two billion, one hundred two million, nine hundred seventy-one thousand, two hundred twenty-one".