121007712157222 has 16 divisors (see below), whose sum is σ = 198360621003600. Its totient is φ = 54906838551040.

The previous prime is 121007712157201. The next prime is 121007712157229. The reversal of 121007712157222 is 222751217700121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121007712157229) 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, 4833335947 + ... + 4833360982.

It is an arithmetic number, because the mean of its divisors is an integer number (12397538812725).

Almost surely, 2^{121007712157222} is an apocalyptic number.

121007712157222 is a deficient number, since it is larger than the sum of its proper divisors (77352908846378).

121007712157222 is a wasteful number, since it uses less digits than its factorization.

121007712157222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9666697511.

The product of its (nonzero) digits is 54880, while the sum is 40.

Adding to 121007712157222 its reverse (222751217700121), we get a palindrome (343758929857343).

The spelling of 121007712157222 in words is "one hundred twenty-one trillion, seven billion, seven hundred twelve million, one hundred fifty-seven thousand, two hundred twenty-two".