22102121971 has 2 divisors, whose sum is σ = 22102121972. Its totient is φ = 22102121970.

The previous prime is 22102121969. The next prime is 22102122011. The reversal of 22102121971 is 17912120122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22102121971 - 2¹ = 22102121969 is a prime.

Together with 22102121969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22102121941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051060985 + 11051060986.

It is an arithmetic number, because the mean of its divisors is an integer number (11051060986).

Almost surely, 2^22102121971 is an apocalyptic number.

22102121971 is a deficient number, since it is larger than the sum of its proper divisors (1).

22102121971 is an equidigital number, since it uses as much as digits as its factorization.

22102121971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 22102121971 in words is "twenty-two billion, one hundred two million, one hundred twenty-one thousand, nine hundred seventy-one".