22211111022011 has 4 divisors (see below), whose sum is σ = 22752845437224. Its totient is φ = 21669376606800.

The previous prime is 22211111021969. The next prime is 22211111022103. The reversal of 22211111022011 is 11022011111222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22211111022011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22211111222011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270867207545 + ... + 270867207626.

It is an arithmetic number, because the mean of its divisors is an integer number (5688211359306).

Almost surely, 2^{22211111022011} is an apocalyptic number.

22211111022011 is a deficient number, since it is larger than the sum of its proper divisors (541734415213).

22211111022011 is an equidigital number, since it uses as much as digits as its factorization.

22211111022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541734415212.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22211111022011 its reverse (11022011111222), we get a palindrome (33233122133233).

The spelling of 22211111022011 in words is "twenty-two trillion, two hundred eleven billion, one hundred eleven million, twenty-two thousand, eleven".