122206566215 has 8 divisors (see below), whose sum is σ = 146840588208. Its totient is φ = 97636780480.

The previous prime is 122206566211. The next prime is 122206566221. The reversal of 122206566215 is 512665602221.

It is a happy number.

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

It is not a de Polignac number, because 122206566215 - 2² = 122206566211 is a prime.

It is a super-2 number, since 2×122206566215² (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 (122206566211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16054877 + ... + 16062486.

It is an arithmetic number, because the mean of its divisors is an integer number (18355073526).

Almost surely, 2^122206566215 is an apocalyptic number.

122206566215 is a deficient number, since it is larger than the sum of its proper divisors (24634021993).

122206566215 is an equidigital number, since it uses as much as digits as its factorization.

122206566215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32118129.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 122206566215 in words is "one hundred twenty-two billion, two hundred six million, five hundred sixty-six thousand, two hundred fifteen".