122020450644 has 12 divisors (see below), whose sum is σ = 284714384864. Its totient is φ = 40673483544.

The previous prime is 122020450633. The next prime is 122020450649. The reversal of 122020450644 is 446054020221.

122020450644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020450649) 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, 5084185432 + ... + 5084185455.

Almost surely, 2^122020450644 is an apocalyptic number.

It is an amenable number.

122020450644 is an abundant number, since it is smaller than the sum of its proper divisors (162693934220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122020450644 is a wasteful number, since it uses less digits than its factorization.

122020450644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10168370894 (or 10168370892 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 122020450644 its reverse (446054020221), we get a palindrome (568074470865).

The spelling of 122020450644 in words is "one hundred twenty-two billion, twenty million, four hundred fifty thousand, six hundred forty-four".