1025111122400 has 72 divisors (see below), whose sum is σ = 2611359206064. Its totient is φ = 392216422400.

The previous prime is 1025111122393. The next prime is 1025111122429. The reversal of 1025111122400 is 42211115201.

1025111122400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27837881 + ... + 27874680.

It is an arithmetic number, because the mean of its divisors is an integer number (36268877862).

Almost surely, 2^{1025111122400} is an apocalyptic number.

1025111122400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025111122400 is an abundant number, since it is smaller than the sum of its proper divisors (1586248083664).

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

1025111122400 is a wasteful number, since it uses less digits than its factorization.

1025111122400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55712604 (or 55712591 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 1025111122400 its reverse (42211115201), we get a palindrome (1067322237601).

The spelling of 1025111122400 in words is "one trillion, twenty-five billion, one hundred eleven million, one hundred twenty-two thousand, four hundred".