122440140222021 has 16 divisors (see below), whose sum is σ = 181532012046720. Its totient is φ = 81564114875040.

The previous prime is 122440140222013. The next prime is 122440140222041. The reversal of 122440140222021 is 120222041044221.

122440140222021 is a `hidden beast` number, since 1 + 2 + 2 + 440 + 14 + 0 + 2 + 2 + 202 + 1 = 666.

It is not a de Polignac number, because 122440140222021 - 2³ = 122440140222013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122440140222041) 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, 1740110640 + ... + 1740181001.

It is an arithmetic number, because the mean of its divisors is an integer number (11345750752920).

Almost surely, 2^{122440140222021} is an apocalyptic number.

It is an amenable number.

122440140222021 is a deficient number, since it is larger than the sum of its proper divisors (59091871824699).

122440140222021 is a wasteful number, since it uses less digits than its factorization.

122440140222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480292953 (or 3480292947 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 122440140222021 its reverse (120222041044221), we get a palindrome (242662181266242).

The spelling of 122440140222021 in words is "one hundred twenty-two trillion, four hundred forty billion, one hundred forty million, two hundred twenty-two thousand, twenty-one".