122434132021 has 4 divisors (see below), whose sum is σ = 122434909792. Its totient is φ = 122433354252.

The previous prime is 122434132019. The next prime is 122434132027. The reversal of 122434132021 is 120231434221.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 120231434221 = 59 ⋅2037820919.

It is a cyclic number.

It is not a de Polignac number, because 122434132021 - 2¹ = 122434132019 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 (122434132027) 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, 60105 + ... + 498478.

It is an arithmetic number, because the mean of its divisors is an integer number (30608727448).

Almost surely, 2^122434132021 is an apocalyptic number.

It is an amenable number.

122434132021 is a deficient number, since it is larger than the sum of its proper divisors (777771).

122434132021 is an equidigital number, since it uses as much as digits as its factorization.

122434132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777770.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 122434132021 its reverse (120231434221), we get a palindrome (242665566242).

The spelling of 122434132021 in words is "one hundred twenty-two billion, four hundred thirty-four million, one hundred thirty-two thousand, twenty-one".