122122400043 has 16 divisors (see below), whose sum is σ = 190630089216. Its totient is φ = 68082173760.

The previous prime is 122122399999. The next prime is 122122400051. The reversal of 122122400043 is 340004221221.

It is not a de Polignac number, because 122122400043 - 2¹⁷ = 122122268971 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 122122399992 and 122122400019.

It is not an unprimeable number, because it can be changed into a prime (122122400083) 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, 70918071 + ... + 70919792.

It is an arithmetic number, because the mean of its divisors is an integer number (11914380576).

Almost surely, 2^122122400043 is an apocalyptic number.

122122400043 is a deficient number, since it is larger than the sum of its proper divisors (68507689173).

122122400043 is a wasteful number, since it uses less digits than its factorization.

122122400043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141837914.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 122122400043 its reverse (340004221221), we get a palindrome (462126621264).

The spelling of 122122400043 in words is "one hundred twenty-two billion, one hundred twenty-two million, four hundred thousand, forty-three".