88812222091 has 2 divisors, whose sum is σ = 88812222092. Its totient is φ = 88812222090.

The previous prime is 88812222077. The next prime is 88812222131. The reversal of 88812222091 is 19022221888.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88812222091 - 2³¹ = 86664738443 is a prime.

It is a super-2 number, since 2×88812222091² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88812922091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44406111045 + 44406111046.

It is an arithmetic number, because the mean of its divisors is an integer number (44406111046).

Almost surely, 2^88812222091 is an apocalyptic number.

88812222091 is a deficient number, since it is larger than the sum of its proper divisors (1).

88812222091 is an equidigital number, since it uses as much as digits as its factorization.

88812222091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 88812222091 in words is "eighty-eight billion, eight hundred twelve million, two hundred twenty-two thousand, ninety-one".