1025111122401 has 4 divisors (see below), whose sum is σ = 1366814829872. Its totient is φ = 683407414932.

The previous prime is 1025111122393. The next prime is 1025111122429. The reversal of 1025111122401 is 1042211115201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1025111122401 - 2³ = 1025111122393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1025111122501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170851853731 + ... + 170851853736.

It is an arithmetic number, because the mean of its divisors is an integer number (341703707468).

Almost surely, 2^{1025111122401} is an apocalyptic number.

It is an amenable number.

1025111122401 is a deficient number, since it is larger than the sum of its proper divisors (341703707471).

1025111122401 is an equidigital number, since it uses as much as digits as its factorization.

1025111122401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341703707470.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 1025111122401 its reverse (1042211115201), we get a palindrome (2067322237602).

The spelling of 1025111122401 in words is "one trillion, twenty-five billion, one hundred eleven million, one hundred twenty-two thousand, four hundred one".