122412121025 has 12 divisors (see below), whose sum is σ = 152561549052. Its totient is φ = 97432587840.

The previous prime is 122412121021. The next prime is 122412121057. The reversal of 122412121025 is 520121214221.

It can be written as a sum of positive squares in 6 ways, for example, as 32411521024 + 90000600001 = 180032^2 + 300001^2 .

It is not a de Polignac number, because 122412121025 - 2² = 122412121021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122412121021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12422702 + ... + 12432551.

It is an arithmetic number, because the mean of its divisors is an integer number (12713462421).

Almost surely, 2^122412121025 is an apocalyptic number.

It is an amenable number.

122412121025 is a deficient number, since it is larger than the sum of its proper divisors (30149428027).

122412121025 is a wasteful number, since it uses less digits than its factorization.

122412121025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24855460 (or 24855455 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

Adding to 122412121025 its reverse (520121214221), we get a palindrome (642533335246).

The spelling of 122412121025 in words is "one hundred twenty-two billion, four hundred twelve million, one hundred twenty-one thousand, twenty-five".