22012212122111 has 8 divisors (see below), whose sum is σ = 23307109515504. Its totient is φ = 20717321549440.

The previous prime is 22012212122093. The next prime is 22012212122137. The reversal of 22012212122111 is 11122121221022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22012212122111 - 2³⁴ = 21995032252927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012212122191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5911196 + ... + 8886318.

It is an arithmetic number, because the mean of its divisors is an integer number (2913388689438).

Almost surely, 2^{22012212122111} is an apocalyptic number.

22012212122111 is a deficient number, since it is larger than the sum of its proper divisors (1294897393393).

22012212122111 is a wasteful number, since it uses less digits than its factorization.

22012212122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3410361.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22012212122111 its reverse (11122121221022), we get a palindrome (33134333343133).

The spelling of 22012212122111 in words is "twenty-two trillion, twelve billion, two hundred twelve million, one hundred twenty-two thousand, one hundred eleven".