10021011222020 has 24 divisors (see below), whose sum is σ = 21054661518744. Its totient is φ = 4006397259776.

The previous prime is 10021011221999. The next prime is 10021011222031. The reversal of 10021011222020 is 2022211012001.

It can be written as a sum of positive squares in 4 ways, for example, as 49512480196 + 9971498741824 = 222514^2 + 3157768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10021011221986 and 10021011222004.

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, 125410877 + ... + 125490756.

It is an arithmetic number, because the mean of its divisors is an integer number (877277563281).

Almost surely, 2^{10021011222020} is an apocalyptic number.

10021011222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021011222020 is an abundant number, since it is smaller than the sum of its proper divisors (11033650296724).

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

10021011222020 is a wasteful number, since it uses less digits than its factorization.

10021011222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250903639 (or 250903637 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10021011222020 its reverse (2022211012001), we get a palindrome (12043222234021).

The spelling of 10021011222020 in words is "ten trillion, twenty-one billion, eleven million, two hundred twenty-two thousand, twenty".