10101221044 has 12 divisors (see below), whose sum is σ = 17698212000. Its totient is φ = 5044589048.

The previous prime is 10101221033. The next prime is 10101221051. The reversal of 10101221044 is 44012210101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501594 + ... + 1508305.

It is an arithmetic number, because the mean of its divisors is an integer number (1474851000).

Almost surely, 2^10101221044 is an apocalyptic number.

It is an amenable number.

10101221044 is a deficient number, since it is larger than the sum of its proper divisors (7596990956).

10101221044 is a wasteful number, since it uses less digits than its factorization.

10101221044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010742 (or 3010740 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10101221044 its reverse (44012210101), we get a palindrome (54113431145).

The spelling of 10101221044 in words is "ten billion, one hundred one million, two hundred twenty-one thousand, forty-four".