122222156651 has 16 divisors (see below), whose sum is σ = 144697129920. Its totient is φ = 101058270720.

The previous prime is 122222156633. The next prime is 122222156657. The reversal of 122222156651 is 156651222221.

It is a cyclic number.

It is not a de Polignac number, because 122222156651 - 2⁶ = 122222156587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122222156657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2366936 + ... + 2418021.

It is an arithmetic number, because the mean of its divisors is an integer number (9043570620).

Almost surely, 2^122222156651 is an apocalyptic number.

122222156651 is a deficient number, since it is larger than the sum of its proper divisors (22474973269).

122222156651 is an equidigital number, since it uses as much as digits as its factorization.

122222156651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785094.

The product of its digits is 28800, while the sum is 35.

Adding to 122222156651 its reverse (156651222221), we get a palindrome (278873378872).

The spelling of 122222156651 in words is "one hundred twenty-two billion, two hundred twenty-two million, one hundred fifty-six thousand, six hundred fifty-one".