1012501025401 has 16 divisors (see below), whose sum is σ = 1052991777600. Its totient is φ = 972771275520.

The previous prime is 1012501025387. The next prime is 1012501025447. The reversal of 1012501025401 is 1045201052101.

It is a cyclic number.

It is not a de Polignac number, because 1012501025401 - 2¹¹ = 1012501023353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022501025401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9420970 + ... + 9527836.

It is an arithmetic number, because the mean of its divisors is an integer number (65811986100).

Almost surely, 2^{1012501025401} is an apocalyptic number.

It is an amenable number.

1012501025401 is a deficient number, since it is larger than the sum of its proper divisors (40490752199).

1012501025401 is a wasteful number, since it uses less digits than its factorization.

1012501025401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110424.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 1012501025401 its reverse (1045201052101), we get a palindrome (2057702077502).

The spelling of 1012501025401 in words is "one trillion, twelve billion, five hundred one million, twenty-five thousand, four hundred one".