220101012121222 has 4 divisors (see below), whose sum is σ = 330151518181836. Its totient is φ = 110050506060610.

The previous prime is 220101012121219. The next prime is 220101012121261. The reversal of 220101012121222 is 222121210101022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 220101012121222.

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, 55025253030304 + ... + 55025253030307.

It is an arithmetic number, because the mean of its divisors is an integer number (82537879545459).

Almost surely, 2^{220101012121222} is an apocalyptic number.

220101012121222 is a deficient number, since it is larger than the sum of its proper divisors (110050506060614).

220101012121222 is a wasteful number, since it uses less digits than its factorization.

220101012121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110050506060613.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220101012121222 its reverse (222121210101022), we get a palindrome (442222222222244).

The spelling of 220101012121222 in words is "two hundred twenty trillion, one hundred one billion, twelve million, one hundred twenty-one thousand, two hundred twenty-two".