1025201332100 has 72 divisors (see below), whose sum is σ = 2478568111488. Its totient is φ = 364868540800.

The previous prime is 1025201332091. The next prime is 1025201332159. The reversal of 1025201332100 is 12331025201.

It is a super-2 number, since 2×1025201332100² (a number of 25 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9863207 + ... + 9966606.

It is an arithmetic number, because the mean of its divisors is an integer number (34424557104).

Almost surely, 2^{1025201332100} is an apocalyptic number.

1025201332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1025201332100 is an abundant number, since it is smaller than the sum of its proper divisors (1453366779388).

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

1025201332100 is a wasteful number, since it uses less digits than its factorization.

1025201332100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19829885 (or 19829878 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 1025201332100 its reverse (12331025201), we get a palindrome (1037532357301).

The spelling of 1025201332100 in words is "one trillion, twenty-five billion, two hundred one million, three hundred thirty-two thousand, one hundred".