121522066607 has 4 divisors (see below), whose sum is σ = 121531692576. Its totient is φ = 121512440640.

The previous prime is 121522066597. The next prime is 121522066609. The reversal of 121522066607 is 706660225121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 706660225121 = 137 ⋅5158103833.

It is a cyclic number.

It is not a de Polignac number, because 121522066607 - 2²⁸ = 121253631151 is a prime.

It is a super-2 number, since 2×121522066607² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121522066609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4794023 + ... + 4819304.

It is an arithmetic number, because the mean of its divisors is an integer number (30382923144).

Almost surely, 2^121522066607 is an apocalyptic number.

121522066607 is a deficient number, since it is larger than the sum of its proper divisors (9625969).

121522066607 is an equidigital number, since it uses as much as digits as its factorization.

121522066607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9625968.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 121522066607 in words is "one hundred twenty-one billion, five hundred twenty-two million, sixty-six thousand, six hundred seven".