122222009837887 has 2 divisors, whose sum is σ = 122222009837888. Its totient is φ = 122222009837886.

The previous prime is 122222009837833. The next prime is 122222009837903. The reversal of 122222009837887 is 788738900222221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122222009837887 is a prime.

It is a super-2 number, since 2×122222009837887² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122222009837387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111004918943 + 61111004918944.

It is an arithmetic number, because the mean of its divisors is an integer number (61111004918944).

Almost surely, 2^{122222009837887} is an apocalyptic number.

122222009837887 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222009837887 is an equidigital number, since it uses as much as digits as its factorization.

122222009837887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 122222009837887 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, nine million, eight hundred thirty-seven thousand, eight hundred eighty-seven".