211222202210121 has 32 divisors (see below), whose sum is σ = 299781455621760. Its totient is φ = 131907844694016.

The previous prime is 211222202210113. The next prime is 211222202210161. The reversal of 211222202210121 is 121012202222112.

It is not a de Polignac number, because 211222202210121 - 2³ = 211222202210113 is a prime.

It is a super-2 number, since 2×211222202210121² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211222202210161) 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, 11346996 + ... + 23477621.

It is an arithmetic number, because the mean of its divisors is an integer number (9368170488180).

Almost surely, 2^{211222202210121} is an apocalyptic number.

It is an amenable number.

211222202210121 is a deficient number, since it is larger than the sum of its proper divisors (88559253411639).

211222202210121 is a wasteful number, since it uses less digits than its factorization.

211222202210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34825833.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211222202210121 its reverse (121012202222112), we get a palindrome (332234404432233).

The spelling of 211222202210121 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred two million, two hundred ten thousand, one hundred twenty-one".