220111202010122 has 4 divisors (see below), whose sum is σ = 330166803015186. Its totient is φ = 110055601005060.

The previous prime is 220111202010109. The next prime is 220111202010137. The reversal of 220111202010122 is 221010202111022.

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

It can be written as a sum of positive squares in only one way, i.e., 163874536219801 + 56236665790321 = 12801349^2 + 7499111^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220111202010122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55027800502529 + ... + 55027800502532.

Almost surely, 2^{220111202010122} is an apocalyptic number.

220111202010122 is a deficient number, since it is larger than the sum of its proper divisors (110055601005064).

220111202010122 is a wasteful number, since it uses less digits than its factorization.

220111202010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110055601005063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220111202010122 its reverse (221010202111022), we get a palindrome (441121404121144).

The spelling of 220111202010122 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred two million, ten thousand, one hundred twenty-two".