10102221444 has 48 divisors (see below), whose sum is σ = 27667353728. Its totient is φ = 2808338688.

The previous prime is 10102221433. The next prime is 10102221541. The reversal of 10102221444 is 44412220101.

It is a super-2 number, since 2×10102221444² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 10102221444.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1622089 + ... + 1628304.

Almost surely, 2^10102221444 is an apocalyptic number.

10102221444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10102221444 is an abundant number, since it is smaller than the sum of its proper divisors (17565132284).

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

10102221444 is a wasteful number, since it uses less digits than its factorization.

10102221444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250444 (or 3250442 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 10102221444 its reverse (44412220101), we get a palindrome (54514441545).

The spelling of 10102221444 in words is "ten billion, one hundred two million, two hundred twenty-one thousand, four hundred forty-four".