20100222102021 has 8 divisors (see below), whose sum is σ = 27370515202944. Its totient is φ = 13115038534560.

The previous prime is 20100222102013. The next prime is 20100222102053. The reversal of 20100222102021 is 12020122200102.

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

It is not a de Polignac number, because 20100222102021 - 2³ = 20100222102013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100222102091) 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, 71277383200 + ... + 71277383481.

It is an arithmetic number, because the mean of its divisors is an integer number (3421314400368).

Almost surely, 2^{20100222102021} is an apocalyptic number.

It is an amenable number.

20100222102021 is a deficient number, since it is larger than the sum of its proper divisors (7270293100923).

20100222102021 is a wasteful number, since it uses less digits than its factorization.

20100222102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142554766731.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20100222102021 its reverse (12020122200102), we get a palindrome (32120344302123).

The spelling of 20100222102021 in words is "twenty trillion, one hundred billion, two hundred twenty-two million, one hundred two thousand, twenty-one".