10012210220021 has 4 divisors (see below), whose sum is σ = 10447523707872. Its totient is φ = 9576896732172.

The previous prime is 10012210219993. The next prime is 10012210220083. The reversal of 10012210220021 is 12002201221001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10012210220021 - 2³⁸ = 9737332313077 is a prime.

It is a super-2 number, since 2×10012210220021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012210219978 and 10012210220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012210226021) 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, 217656743891 + ... + 217656743936.

It is an arithmetic number, because the mean of its divisors is an integer number (2611880926968).

Almost surely, 2^{10012210220021} is an apocalyptic number.

It is an amenable number.

10012210220021 is a deficient number, since it is larger than the sum of its proper divisors (435313487851).

10012210220021 is an equidigital number, since it uses as much as digits as its factorization.

10012210220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435313487850.

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

Adding to 10012210220021 its reverse (12002201221001), we get a palindrome (22014411441022).

The spelling of 10012210220021 in words is "ten trillion, twelve billion, two hundred ten million, two hundred twenty thousand, twenty-one".