101222221425 has 48 divisors (see below), whose sum is σ = 181375682880. Its totient is φ = 49514999040.

The previous prime is 101222221391. The next prime is 101222221447. The reversal of 101222221425 is 524122222101.

It is a happy number.

It is not a de Polignac number, because 101222221425 - 2⁶ = 101222221361 is a prime.

It is a super-2 number, since 2×101222221425² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101222221395 and 101222221404.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177555 + ... + 483704.

It is an arithmetic number, because the mean of its divisors is an integer number (3778660060).

Almost surely, 2^101222221425 is an apocalyptic number.

101222221425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101222221425 is a deficient number, since it is larger than the sum of its proper divisors (80153461455).

101222221425 is a wasteful number, since it uses less digits than its factorization.

101222221425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661442 (or 661437 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 101222221425 its reverse (524122222101), we get a palindrome (625344443526).

The spelling of 101222221425 in words is "one hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, four hundred twenty-five".