20211002210 has 32 divisors (see below), whose sum is σ = 41581814400. Its totient is φ = 6928670592.

The previous prime is 20211002191. The next prime is 20211002243. The reversal of 20211002210 is 1220011202.

It is a happy number.

It is a super-2 number, since 2×20211002210² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20211002191 and 20211002200.

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, 1149566 + ... + 1167014.

It is an arithmetic number, because the mean of its divisors is an integer number (1299431700).

Almost surely, 2^20211002210 is an apocalyptic number.

20211002210 is an abundant number, since it is smaller than the sum of its proper divisors (21370812190).

20211002210 is a wasteful number, since it uses less digits than its factorization.

20211002210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34010.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20211002210 its reverse (1220011202), we get a palindrome (21431013412).

The spelling of 20211002210 in words is "twenty billion, two hundred eleven million, two thousand, two hundred ten".