20220011021 has 8 divisors (see below), whose sum is σ = 24467912640. Its totient is φ = 16311941568.

The previous prime is 20220011017. The next prime is 20220011023. The reversal of 20220011021 is 12011002202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20220011021 - 2² = 20220011017 is a prime.

It is a super-2 number, since 2×20220011021² (a number of 21 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 = 20220010993 and 20220011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220011023) 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, 84957911 + ... + 84958148.

It is an arithmetic number, because the mean of its divisors is an integer number (3058489080).

Almost surely, 2^20220011021 is an apocalyptic number.

It is an amenable number.

20220011021 is a deficient number, since it is larger than the sum of its proper divisors (4247901619).

20220011021 is a wasteful number, since it uses less digits than its factorization.

20220011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169916083.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20220011021 its reverse (12011002202), we get a palindrome (32231013223).

The spelling of 20220011021 in words is "twenty billion, two hundred twenty million, eleven thousand, twenty-one".