122244142021 has 4 divisors (see below), whose sum is σ = 122367497344. Its totient is φ = 122120786700.

The previous prime is 122244141997. The next prime is 122244142057. The reversal of 122244142021 is 120241442221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122244142021 - 2¹³ = 122244133829 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 (122244142061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61676175 + ... + 61678156.

It is an arithmetic number, because the mean of its divisors is an integer number (30591874336).

Almost surely, 2^122244142021 is an apocalyptic number.

It is an amenable number.

122244142021 is a deficient number, since it is larger than the sum of its proper divisors (123355323).

122244142021 is an equidigital number, since it uses as much as digits as its factorization.

122244142021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123355322.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 122244142021 its reverse (120241442221), we get a palindrome (242485584242).

The spelling of 122244142021 in words is "one hundred twenty-two billion, two hundred forty-four million, one hundred forty-two thousand, twenty-one".