10212021220220 has 12 divisors (see below), whose sum is σ = 21445244562504. Its totient is φ = 4084808488080.

The previous prime is 10212021220211. The next prime is 10212021220229. The reversal of 10212021220220 is 2202212021201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10212021220211) and next prime (10212021220229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212021220229) 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, 255300530486 + ... + 255300530525.

It is an arithmetic number, because the mean of its divisors is an integer number (1787103713542).

Almost surely, 2^{10212021220220} is an apocalyptic number.

10212021220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212021220220 is an abundant number, since it is smaller than the sum of its proper divisors (11233223342284).

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

10212021220220 is a wasteful number, since it uses less digits than its factorization.

10212021220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510601061020 (or 510601061018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10212021220220 its reverse (2202212021201), we get a palindrome (12414233241421).

It can be divided in two parts, 1021202 and 1220220, that added together give a palindrome (2241422).

The spelling of 10212021220220 in words is "ten trillion, two hundred twelve billion, twenty-one million, two hundred twenty thousand, two hundred twenty".