20222002220021 has 8 divisors (see below), whose sum is σ = 24115679666304. Its totient is φ = 16579529770320.

The previous prime is 20222002219987. The next prime is 20222002220033. The reversal of 20222002220021 is 12002220022202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222002220021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222002220081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62801248970 + ... + 62801249291.

It is an arithmetic number, because the mean of its divisors is an integer number (3014459958288).

Almost surely, 2^{20222002220021} is an apocalyptic number.

It is an amenable number.

20222002220021 is a deficient number, since it is larger than the sum of its proper divisors (3893677446283).

20222002220021 is a wasteful number, since it uses less digits than its factorization.

20222002220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125602498291.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20222002220021 its reverse (12002220022202), we get a palindrome (32224222242223).

The spelling of 20222002220021 in words is "twenty trillion, two hundred twenty-two billion, two million, two hundred twenty thousand, twenty-one".