20021010210 has 48 divisors (see below), whose sum is σ = 52068519360. Its totient is φ = 5337511200.

The previous prime is 20021010203. The next prime is 20021010223. The reversal of 20021010210 is 1201012002.

It is a super-3 number, since 3×20021010210³ (a number of 32 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 20021010192 and 20021010201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334035 + ... + 389385.

It is an arithmetic number, because the mean of its divisors is an integer number (1084760820).

Almost surely, 2^20021010210 is an apocalyptic number.

20021010210 is an abundant number, since it is smaller than the sum of its proper divisors (32047509150).

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

20021010210 is a wasteful number, since it uses less digits than its factorization.

20021010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59383 (or 59380 counting only the distinct ones).

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

Adding to 20021010210 its reverse (1201012002), we get a palindrome (21222022212).

The spelling of 20021010210 in words is "twenty billion, twenty-one million, ten thousand, two hundred ten".