122265540644 has 12 divisors (see below), whose sum is σ = 230423519004. Its totient is φ = 56430249504.

The previous prime is 122265540599. The next prime is 122265540647. The reversal of 122265540644 is 446045562221.

It can be written as a sum of positive squares in 2 ways, for example, as 67528259044 + 54737281600 = 259862^2 + 233960^2 .

It is not an unprimeable number, because it can be changed into a prime (122265540647) 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, 1175630147 + ... + 1175630250.

It is an arithmetic number, because the mean of its divisors is an integer number (19201959917).

Almost surely, 2^122265540644 is an apocalyptic number.

It is an amenable number.

122265540644 is a deficient number, since it is larger than the sum of its proper divisors (108157978360).

122265540644 is a wasteful number, since it uses less digits than its factorization.

122265540644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2351260414 (or 2351260412 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 122265540644 in words is "one hundred twenty-two billion, two hundred sixty-five million, five hundred forty thousand, six hundred forty-four".