121213023222 has 16 divisors (see below), whose sum is σ = 247000123440. Its totient is φ = 39641994912.

The previous prime is 121213023221. The next prime is 121213023247. The reversal of 121213023222 is 222320312121.

It is a super-2 number, since 2×121213023222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213023221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190586197 + ... + 190586832.

It is an arithmetic number, because the mean of its divisors is an integer number (15437507715).

Almost surely, 2^121213023222 is an apocalyptic number.

121213023222 is an abundant number, since it is smaller than the sum of its proper divisors (125787100218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121213023222 is a wasteful number, since it uses less digits than its factorization.

121213023222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381173087.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121213023222 its reverse (222320312121), we get a palindrome (343533335343).

The spelling of 121213023222 in words is "one hundred twenty-one billion, two hundred thirteen million, twenty-three thousand, two hundred twenty-two".