101025022172 has 24 divisors (see below), whose sum is σ = 177985718400. Its totient is φ = 50172827760.

The previous prime is 101025022159. The next prime is 101025022181. The reversal of 101025022172 is 271220520101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359147 + ... + 575357.

It is an arithmetic number, because the mean of its divisors is an integer number (7416071600).

Almost surely, 2^101025022172 is an apocalyptic number.

It is an amenable number.

101025022172 is a deficient number, since it is larger than the sum of its proper divisors (76960696228).

101025022172 is a wasteful number, since it uses less digits than its factorization.

101025022172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217001 (or 216999 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 101025022172 its reverse (271220520101), we get a palindrome (372245542273).

The spelling of 101025022172 in words is "one hundred one billion, twenty-five million, twenty-two thousand, one hundred seventy-two".