22211111121211 has 8 divisors (see below), whose sum is σ = 22673454946560. Its totient is φ = 21751630106472.

The previous prime is 22211111121197. The next prime is 22211111121217. The reversal of 22211111121211 is 11212111111222.

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 22211111121211 - 2¹³ = 22211111113019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211111121217) 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, 715686975 + ... + 715718008.

It is an arithmetic number, because the mean of its divisors is an integer number (2834181868320).

Almost surely, 2^{22211111121211} is an apocalyptic number.

22211111121211 is a deficient number, since it is larger than the sum of its proper divisors (462343825349).

22211111121211 is a wasteful number, since it uses less digits than its factorization.

22211111121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431405305.

The product of its digits is 32, while the sum is 19.

Adding to 22211111121211 its reverse (11212111111222), we get a palindrome (33423222232433).

The spelling of 22211111121211 in words is "twenty-two trillion, two hundred eleven billion, one hundred eleven million, one hundred twenty-one thousand, two hundred eleven".