121262302164 has 12 divisors (see below), whose sum is σ = 282945371744. Its totient is φ = 40420767384.

The previous prime is 121262302123. The next prime is 121262302181. The reversal of 121262302164 is 461203262121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×121262302164² (a number of 23 digits) contains 22 as substring.

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, 5052595912 + ... + 5052595935.

Almost surely, 2^121262302164 is an apocalyptic number.

It is an amenable number.

121262302164 is an abundant number, since it is smaller than the sum of its proper divisors (161683069580).

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

121262302164 is a wasteful number, since it uses less digits than its factorization.

121262302164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10105191854 (or 10105191852 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 121262302164 its reverse (461203262121), we get a palindrome (582465564285).

The spelling of 121262302164 in words is "one hundred twenty-one billion, two hundred sixty-two million, three hundred two thousand, one hundred sixty-four".