122664220015 has 8 divisors (see below), whose sum is σ = 147210573600. Its totient is φ = 98122369632.

The previous prime is 122664219991. The next prime is 122664220031. The reversal of 122664220015 is 510022466221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122664220015 - 2⁵ = 122664219983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065579 + ... + 1175068.

It is an arithmetic number, because the mean of its divisors is an integer number (18401321700).

Almost surely, 2^122664220015 is an apocalyptic number.

122664220015 is a deficient number, since it is larger than the sum of its proper divisors (24546353585).

122664220015 is a wasteful number, since it uses less digits than its factorization.

122664220015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251601.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 122664220015 its reverse (510022466221), we get a palindrome (632686686236).

The spelling of 122664220015 in words is "one hundred twenty-two billion, six hundred sixty-four million, two hundred twenty thousand, fifteen".