122042230021 has 4 divisors (see below), whose sum is σ = 122134199872. Its totient is φ = 121950260172.

The previous prime is 122042229973. The next prime is 122042230031. The reversal of 122042230021 is 120032240221.

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 122042230021 - 2²⁷ = 121908012293 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 (122042230031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45982935 + ... + 45985588.

It is an arithmetic number, because the mean of its divisors is an integer number (30533549968).

Almost surely, 2^122042230021 is an apocalyptic number.

It is an amenable number.

122042230021 is a deficient number, since it is larger than the sum of its proper divisors (91969851).

122042230021 is an equidigital number, since it uses as much as digits as its factorization.

122042230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91969850.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122042230021 its reverse (120032240221), we get a palindrome (242074470242).

The spelling of 122042230021 in words is "one hundred twenty-two billion, forty-two million, two hundred thirty thousand, twenty-one".