20220011210021 has 4 divisors (see below), whose sum is σ = 23108584240032. Its totient is φ = 17331438180012.

The previous prime is 20220011209883. The next prime is 20220011210051. The reversal of 20220011210021 is 12001211002202.

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 a de Polignac number, because none of the positive numbers 2^k-20220011210021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220011209978 and 20220011210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220011210051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444286514995 + ... + 1444286515008.

It is an arithmetic number, because the mean of its divisors is an integer number (5777146060008).

Almost surely, 2^{20220011210021} is an apocalyptic number.

It is an amenable number.

20220011210021 is a deficient number, since it is larger than the sum of its proper divisors (2888573030011).

20220011210021 is an equidigital number, since it uses as much as digits as its factorization.

20220011210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888573030010.

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

Adding to 20220011210021 its reverse (12001211002202), we get a palindrome (32221222212223).

The spelling of 20220011210021 in words is "twenty trillion, two hundred twenty billion, eleven million, two hundred ten thousand, twenty-one".