20101020100222 has 4 divisors (see below), whose sum is σ = 30151530150336. Its totient is φ = 10050510050110.

The previous prime is 20101020100219. The next prime is 20101020100243. The reversal of 20101020100222 is 22200102010102.

It is a happy number.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025255025054 + ... + 5025255025057.

It is an arithmetic number, because the mean of its divisors is an integer number (7537882537584).

Almost surely, 2^{20101020100222} is an apocalyptic number.

20101020100222 is a deficient number, since it is larger than the sum of its proper divisors (10050510050114).

20101020100222 is a wasteful number, since it uses less digits than its factorization.

20101020100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050510050113.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20101020100222 its reverse (22200102010102), we get a palindrome (42301122110324).

The spelling of 20101020100222 in words is "twenty trillion, one hundred one billion, twenty million, one hundred thousand, two hundred twenty-two".