101425220244 has 18 divisors (see below), whose sum is σ = 256380417930. Its totient is φ = 33808406736.

The previous prime is 101425220243. The next prime is 101425220257. The reversal of 101425220244 is 442022524101.

It is a happy number.

101425220244 is a `hidden beast` number, since 10 + 1 + 425 + 220 + 2 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 84426275844 + 16998944400 = 290562^2 + 130380^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101425220243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1408683579 + ... + 1408683650.

Almost surely, 2^101425220244 is an apocalyptic number.

It is an amenable number.

101425220244 is an abundant number, since it is smaller than the sum of its proper divisors (154955197686).

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

101425220244 is a wasteful number, since it uses less digits than its factorization.

101425220244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817367239 (or 2817367234 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 101425220244 its reverse (442022524101), we get a palindrome (543447744345).

The spelling of 101425220244 in words is "one hundred one billion, four hundred twenty-five million, two hundred twenty thousand, two hundred forty-four".