122621771027 has 12 divisors (see below), whose sum is σ = 148843464336. Its totient is φ = 100534618800.

The previous prime is 122621771011. The next prime is 122621771053. The reversal of 122621771027 is 720177126221.

It is not a de Polignac number, because 122621771027 - 2⁴ = 122621771011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122621771087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54400724 + ... + 54402977.

It is an arithmetic number, because the mean of its divisors is an integer number (12403622028).

Almost surely, 2^122621771027 is an apocalyptic number.

122621771027 is a deficient number, since it is larger than the sum of its proper divisors (26221693309).

122621771027 is a wasteful number, since it uses less digits than its factorization.

122621771027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108803738 (or 108803731 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 38.

Adding to 122621771027 its reverse (720177126221), we get a palindrome (842798897248).

The spelling of 122621771027 in words is "one hundred twenty-two billion, six hundred twenty-one million, seven hundred seventy-one thousand, twenty-seven".