10002021102 has 40 divisors (see below), whose sum is σ = 23134913472. Its totient is φ = 3226456800.

The previous prime is 10002021083. The next prime is 10002021119. The reversal of 10002021102 is 20112020001.

It is a super-2 number, since 2×10002021102² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 990799 + ... + 1000842.

Almost surely, 2^10002021102 is an apocalyptic number.

10002021102 is an abundant number, since it is smaller than the sum of its proper divisors (13132892370).

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

10002021102 is a wasteful number, since it uses less digits than its factorization.

10002021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991686 (or 1991677 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10002021102 its reverse (20112020001), we get a palindrome (30114041103).

The spelling of 10002021102 in words is "ten billion, two million, twenty-one thousand, one hundred two".