122001210221 has 16 divisors (see below), whose sum is σ = 136282798080. Its totient is φ = 108254998320.

The previous prime is 122001210197. The next prime is 122001210229. The reversal of 122001210221 is 122012100221.

It is a cyclic number.

It is not a de Polignac number, because 122001210221 - 2⁶ = 122001210157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122001210196 and 122001210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001210229) 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, 591026 + ... + 770268.

It is an arithmetic number, because the mean of its divisors is an integer number (8517674880).

Almost surely, 2^122001210221 is an apocalyptic number.

122001210221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122001210221 is a deficient number, since it is larger than the sum of its proper divisors (14281587859).

122001210221 is a wasteful number, since it uses less digits than its factorization.

122001210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180736.

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

Adding to 122001210221 its reverse (122012100221), we get a palindrome (244013310442).

Subtracting 122001210221 from its reverse (122012100221), we obtain a square (10890000 = 3300²).

The spelling of 122001210221 in words is "one hundred twenty-two billion, one million, two hundred ten thousand, two hundred twenty-one".