121215601022 has 16 divisors (see below), whose sum is σ = 183996418320. Its totient is φ = 59887760832.

The previous prime is 121215601021. The next prime is 121215601079. The reversal of 121215601022 is 220106512121.

It is a super-2 number, since 2×121215601022² (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 (121215601021) 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, 1018247 + ... + 1131042.

It is an arithmetic number, because the mean of its divisors is an integer number (11499776145).

Almost surely, 2^121215601022 is an apocalyptic number.

121215601022 is a deficient number, since it is larger than the sum of its proper divisors (62780817298).

121215601022 is a wasteful number, since it uses less digits than its factorization.

121215601022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149627.

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 121215601022 in words is "one hundred twenty-one billion, two hundred fifteen million, six hundred one thousand, twenty-two".