20112101222222 has 16 divisors (see below), whose sum is σ = 30196460500080. Its totient is φ = 10046618350272.

The previous prime is 20112101222203. The next prime is 20112101222303. The reversal of 20112101222222 is 22222210121102.

It is a junction number, because it is equal to n+sod(n) for n = 20112101222194 and 20112101222203.

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, 9190568 + ... + 11166500.

It is an arithmetic number, because the mean of its divisors is an integer number (1887278781255).

Almost surely, 2^{20112101222222} is an apocalyptic number.

20112101222222 is a deficient number, since it is larger than the sum of its proper divisors (10084359277858).

20112101222222 is a wasteful number, since it uses less digits than its factorization.

20112101222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980707.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20112101222222 its reverse (22222210121102), we get a palindrome (42334311343324).

The spelling of 20112101222222 in words is "twenty trillion, one hundred twelve billion, one hundred one million, two hundred twenty-two thousand, two hundred twenty-two".