20212221201022 has 8 divisors (see below), whose sum is σ = 30318549163056. Its totient is φ = 10106038146672.

The previous prime is 20212221200999. The next prime is 20212221201071. The reversal of 20212221201022 is 22010212221202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35877538 + ... + 36436549.

It is an arithmetic number, because the mean of its divisors is an integer number (3789818645382).

Almost surely, 2^{20212221201022} is an apocalyptic number.

20212221201022 is a deficient number, since it is larger than the sum of its proper divisors (10106327962034).

20212221201022 is a wasteful number, since it uses less digits than its factorization.

20212221201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72453842.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20212221201022 its reverse (22010212221202), we get a palindrome (42222433422224).

The spelling of 20212221201022 in words is "twenty trillion, two hundred twelve billion, two hundred twenty-one million, two hundred one thousand, twenty-two".