122615252450 has 12 divisors (see below), whose sum is σ = 228064369650. Its totient is φ = 49046100960.

The previous prime is 122615252449. The next prime is 122615252549. The reversal of 122615252450 is 54252516221.

122615252450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 111817340881 + 10797911569 = 334391^2 + 103913^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122615252450.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1226152475 + ... + 1226152574.

Almost surely, 2^122615252450 is an apocalyptic number.

122615252450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122615252450 is a deficient number, since it is larger than the sum of its proper divisors (105449117200).

122615252450 is a wasteful number, since it uses less digits than its factorization.

122615252450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452305061 (or 2452305056 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 122615252450 its reverse (54252516221), we get a palindrome (176867768671).

The spelling of 122615252450 in words is "one hundred twenty-two billion, six hundred fifteen million, two hundred fifty-two thousand, four hundred fifty".