122011210221 has 64 divisors (see below), whose sum is σ = 187891384320. Its totient is φ = 69966673920.

The previous prime is 122011210201. The next prime is 122011210229. The reversal of 122011210221 is 122012110221.

It is not a de Polignac number, because 122011210221 - 2⁹ = 122011209709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122011210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122011210229) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2851441 + ... + 2893913.

It is an arithmetic number, because the mean of its divisors is an integer number (2935802880).

Almost surely, 2^122011210221 is an apocalyptic number.

It is an amenable number.

122011210221 is a deficient number, since it is larger than the sum of its proper divisors (65880174099).

122011210221 is a wasteful number, since it uses less digits than its factorization.

122011210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42626.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122011210221 its reverse (122012110221), we get a palindrome (244023320442).

The spelling of 122011210221 in words is "one hundred twenty-two billion, eleven million, two hundred ten thousand, two hundred twenty-one".