22012122222111 has 8 divisors (see below), whose sum is σ = 33542281481344. Its totient is φ = 12578355555480.

The previous prime is 22012122222109. The next prime is 22012122222119. The reversal of 22012122222111 is 11122222121022.

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

It is not a de Polignac number, because 22012122222111 - 2¹ = 22012122222109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1048196296291 = 22012122222111 / (2 + 2 + 0 + 1 + 2 + 1 + 2 + 2 + 2 + 2 + 2 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012122222119) 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, 524098148125 + ... + 524098148166.

It is an arithmetic number, because the mean of its divisors is an integer number (4192785185168).

Almost surely, 2^{22012122222111} is an apocalyptic number.

22012122222111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22012122222111 is a deficient number, since it is larger than the sum of its proper divisors (11530159259233).

22012122222111 is a wasteful number, since it uses less digits than its factorization.

22012122222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048196296301.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22012122222111 its reverse (11122222121022), we get a palindrome (33134344343133).

The spelling of 22012122222111 in words is "twenty-two trillion, twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred eleven".