20111021200022 has 4 divisors (see below), whose sum is σ = 30166531800036. Its totient is φ = 10055510600010.

The previous prime is 20111021199989. The next prime is 20111021200031. The reversal of 20111021200022 is 22000212011102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027755300004 + ... + 5027755300007.

It is an arithmetic number, because the mean of its divisors is an integer number (7541632950009).

Almost surely, 2^{20111021200022} is an apocalyptic number.

20111021200022 is a deficient number, since it is larger than the sum of its proper divisors (10055510600014).

20111021200022 is a wasteful number, since it uses less digits than its factorization.

20111021200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055510600013.

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

Adding to 20111021200022 its reverse (22000212011102), we get a palindrome (42111233211124).

The spelling of 20111021200022 in words is "twenty trillion, one hundred eleven billion, twenty-one million, two hundred thousand, twenty-two".