22311121221091 has 2 divisors, whose sum is σ = 22311121221092. Its totient is φ = 22311121221090.

The previous prime is 22311121221049. The next prime is 22311121221119. The reversal of 22311121221091 is 19012212111322.

It is an a-pointer prime, because the next prime (22311121221119) can be obtained adding 22311121221091 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22311121221091 - 2⁹ = 22311121220579 is a prime.

It is a super-3 number, since 3×22311121221091³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (22311121221491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11155560610545 + 11155560610546.

It is an arithmetic number, because the mean of its divisors is an integer number (11155560610546).

Almost surely, 2^{22311121221091} is an apocalyptic number.

22311121221091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22311121221091 is an equidigital number, since it uses as much as digits as its factorization.

22311121221091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 22311121221091 in words is "twenty-two trillion, three hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, ninety-one".