10002212020 has 24 divisors (see below), whose sum is σ = 21041584200. Its totient is φ = 3993848832.

The previous prime is 10002211991. The next prime is 10002212053. The reversal of 10002212020 is 2021220001.

It can be written as a sum of positive squares in 4 ways, for example, as 1382203684 + 8620008336 = 37178^2 + 92844^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10002211988 and 10002212006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428085 + ... + 450844.

It is an arithmetic number, because the mean of its divisors is an integer number (876732675).

Almost surely, 2^10002212020 is an apocalyptic number.

10002212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002212020 is an abundant number, since it is smaller than the sum of its proper divisors (11039372180).

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

10002212020 is a wasteful number, since it uses less digits than its factorization.

10002212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879507 (or 879505 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 10002212020 its reverse (2021220001), we get a palindrome (12023432021).

The spelling of 10002212020 in words is "ten billion, two million, two hundred twelve thousand, twenty".