20221001100222 has 32 divisors (see below), whose sum is σ = 43586505406752. Its totient is φ = 6217049355264.

The previous prime is 20221001100191. The next prime is 20221001100299. The reversal of 20221001100222 is 22200110012202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99838543 + ... + 100040874.

It is an arithmetic number, because the mean of its divisors is an integer number (1362078293961).

Almost surely, 2^{20221001100222} is an apocalyptic number.

20221001100222 is an abundant number, since it is smaller than the sum of its proper divisors (23365504306530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20221001100222 is a wasteful number, since it uses less digits than its factorization.

20221001100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199880732.

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

Adding to 20221001100222 its reverse (22200110012202), we get a palindrome (42421111112424).

The spelling of 20221001100222 in words is "twenty trillion, two hundred twenty-one billion, one million, one hundred thousand, two hundred twenty-two".