122512770221 has 8 divisors (see below), whose sum is σ = 123764176800. Its totient is φ = 121263680880.

The previous prime is 122512770217. The next prime is 122512770239. The reversal of 122512770221 is 122077215221.

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 122512770221 - 2² = 122512770217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122512770251) 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, 472931 + ... + 684608.

It is an arithmetic number, because the mean of its divisors is an integer number (15470522100).

Almost surely, 2^122512770221 is an apocalyptic number.

It is an amenable number.

122512770221 is a deficient number, since it is larger than the sum of its proper divisors (1251406579).

122512770221 is a wasteful number, since it uses less digits than its factorization.

122512770221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158619.

The product of its (nonzero) digits is 7840, while the sum is 32.

Adding to 122512770221 its reverse (122077215221), we get a palindrome (244589985442).

The spelling of 122512770221 in words is "one hundred twenty-two billion, five hundred twelve million, seven hundred seventy thousand, two hundred twenty-one".