22121101187 has 2 divisors, whose sum is σ = 22121101188. Its totient is φ = 22121101186.

The previous prime is 22121101157. The next prime is 22121101217. The reversal of 22121101187 is 78110112122.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (22121101157) and next prime (22121101217).

It is a cyclic number.

It is not a de Polignac number, because 22121101187 - 2¹⁴ = 22121084803 is a prime.

It is not a weakly prime, because it can be changed into another prime (22121101147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060550593 + 11060550594.

It is an arithmetic number, because the mean of its divisors is an integer number (11060550594).

Almost surely, 2^22121101187 is an apocalyptic number.

22121101187 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121101187 is an equidigital number, since it uses as much as digits as its factorization.

22121101187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 26.

The spelling of 22121101187 in words is "twenty-two billion, one hundred twenty-one million, one hundred one thousand, one hundred eighty-seven".