121206346464 has 96 divisors (see below), whose sum is σ = 375348750336. Its totient is φ = 33513269760.

The previous prime is 121206346403. The next prime is 121206346523. The reversal of 121206346464 is 464643602121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2888307 + ... + 2929970.

It is an arithmetic number, because the mean of its divisors is an integer number (3909882816).

Almost surely, 2^121206346464 is an apocalyptic number.

121206346464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121206346464 is an abundant number, since it is smaller than the sum of its proper divisors (254142403872).

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

121206346464 is a wasteful number, since it uses less digits than its factorization.

121206346464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5818328 (or 5818320 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

Adding to 121206346464 its reverse (464643602121), we get a palindrome (585849948585).

The spelling of 121206346464 in words is "one hundred twenty-one billion, two hundred six million, three hundred forty-six thousand, four hundred sixty-four".