1012001212125 has 80 divisors (see below), whose sum is σ = 1888426315776. Its totient is φ = 539231580000.

The previous prime is 1012001212111. The next prime is 1012001212127. The reversal of 1012001212125 is 5212121002101.

It is not a de Polignac number, because 1012001212125 - 2⁵ = 1012001212093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012001212098 and 1012001212107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012001212127) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10959900 + ... + 11051850.

Almost surely, 2^{1012001212125} is an apocalyptic number.

1012001212125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1012001212125 is a deficient number, since it is larger than the sum of its proper divisors (876425103651).

1012001212125 is an equidigital number, since it uses as much as digits as its factorization.

1012001212125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93065 (or 93046 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 1012001212125 its reverse (5212121002101), we get a palindrome (6224122214226).

The spelling of 1012001212125 in words is "one trillion, twelve billion, one million, two hundred twelve thousand, one hundred twenty-five".