2021102044 has 12 divisors (see below), whose sum is σ = 3809000104. Its totient is φ = 932816304.

The previous prime is 2021101993. The next prime is 2021102047. The reversal of 2021102044 is 4402011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021102047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19433622 + ... + 19433725.

Almost surely, 2^2021102044 is an apocalyptic number.

It is an amenable number.

2021102044 is a deficient number, since it is larger than the sum of its proper divisors (1787898060).

2021102044 is a wasteful number, since it uses less digits than its factorization.

2021102044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38867364 (or 38867362 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2021102044 is about 44956.6685153604. The cubic root of 2021102044 is about 1264.3367077873.

Adding to 2021102044 its reverse (4402011202), we get a palindrome (6423113246).

The spelling of 2021102044 in words is "two billion, twenty-one million, one hundred two thousand, forty-four".