122100020122 has 4 divisors (see below), whose sum is σ = 183150030186. Its totient is φ = 61050010060.

The previous prime is 122100020117. The next prime is 122100020123. The reversal of 122100020122 is 221020001221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221020001221 = 19433 ⋅11373437.

It can be written as a sum of positive squares in only one way, i.e., 74353837041 + 47746183081 = 272679^2 + 218509^2 .

It is not an unprimeable number, because it can be changed into a prime (122100020123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30525005029 + ... + 30525005032.

Almost surely, 2^122100020122 is an apocalyptic number.

122100020122 is a deficient number, since it is larger than the sum of its proper divisors (61050010064).

122100020122 is an equidigital number, since it uses as much as digits as its factorization.

122100020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61050010063.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122100020122 its reverse (221020001221), we get a palindrome (343120021343).

The spelling of 122100020122 in words is "one hundred twenty-two billion, one hundred million, twenty thousand, one hundred twenty-two".