121245161216 has 36 divisors (see below), whose sum is σ = 247645026552. Its totient is φ = 59212747776.

The previous prime is 121245161179. The next prime is 121245161239. The reversal of 121245161216 is 612161542121.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5496131 + ... + 5518146.

Almost surely, 2^121245161216 is an apocalyptic number.

121245161216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121245161216 is an abundant number, since it is smaller than the sum of its proper divisors (126399865336).

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

121245161216 is an equidigital number, since it uses as much as digits as its factorization.

121245161216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11014336 (or 11014322 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The spelling of 121245161216 in words is "one hundred twenty-one billion, two hundred forty-five million, one hundred sixty-one thousand, two hundred sixteen".