20112022111222 has 16 divisors (see below), whose sum is σ = 31760097107760. Its totient is φ = 9525465499392.

The previous prime is 20112022111219. The next prime is 20112022111231. The reversal of 20112022111222 is 22211122021102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 20112022111222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35319843 + ... + 35884750.

It is an arithmetic number, because the mean of its divisors is an integer number (1985006069235).

Almost surely, 2^{20112022111222} is an apocalyptic number.

20112022111222 is a deficient number, since it is larger than the sum of its proper divisors (11648074996538).

20112022111222 is a wasteful number, since it uses less digits than its factorization.

20112022111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71212047.

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

Adding to 20112022111222 its reverse (22211122021102), we get a palindrome (42323144132324).

The spelling of 20112022111222 in words is "twenty trillion, one hundred twelve billion, twenty-two million, one hundred eleven thousand, two hundred twenty-two".