1252100170120 has 32 divisors (see below), whose sum is σ = 2817862729920. Its totient is φ = 500726761920.

The previous prime is 1252100170049. The next prime is 1252100170141. The reversal of 1252100170120 is 210710012521.

It is a junction number, because it is equal to n+sod(n) for n = 1252100170091 and 1252100170100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3361686 + ... + 3715525.

It is an arithmetic number, because the mean of its divisors is an integer number (88058210310).

Almost surely, 2^{1252100170120} is an apocalyptic number.

1252100170120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252100170120 is an abundant number, since it is smaller than the sum of its proper divisors (1565762559800).

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

1252100170120 is a wasteful number, since it uses less digits than its factorization.

1252100170120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7081645 (or 7081641 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 1252100170120 its reverse (210710012521), we get a palindrome (1462810182641).

The spelling of 1252100170120 in words is "one trillion, two hundred fifty-two billion, one hundred million, one hundred seventy thousand, one hundred twenty".