122212351551 has 64 divisors (see below), whose sum is σ = 186273792000. Its totient is φ = 70896954240.

The previous prime is 122212351537. The next prime is 122212351621. The reversal of 122212351551 is 155153212221.

It is not a de Polignac number, because 122212351551 - 2⁹ = 122212351039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212351451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3003126 + ... + 3043548.

It is an arithmetic number, because the mean of its divisors is an integer number (2910528000).

Almost surely, 2^122212351551 is an apocalyptic number.

122212351551 is a deficient number, since it is larger than the sum of its proper divisors (64061440449).

122212351551 is a wasteful number, since it uses less digits than its factorization.

122212351551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40564.

The product of its digits is 6000, while the sum is 30.

Adding to 122212351551 its reverse (155153212221), we get a palindrome (277365563772).

The spelling of 122212351551 in words is "one hundred twenty-two billion, two hundred twelve million, three hundred fifty-one thousand, five hundred fifty-one".