102202021087 has 2 divisors, whose sum is σ = 102202021088. Its totient is φ = 102202021086.

The previous prime is 102202021069. The next prime is 102202021147. The reversal of 102202021087 is 780120202201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102202021087 - 2¹¹ = 102202019039 is a prime.

It is a super-2 number, since 2×102202021087² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102202021037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51101010543 + 51101010544.

It is an arithmetic number, because the mean of its divisors is an integer number (51101010544).

Almost surely, 2^102202021087 is an apocalyptic number.

102202021087 is a deficient number, since it is larger than the sum of its proper divisors (1).

102202021087 is an equidigital number, since it uses as much as digits as its factorization.

102202021087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 102202021087 its reverse (780120202201), we get a palindrome (882322223288).

The spelling of 102202021087 in words is "one hundred two billion, two hundred two million, twenty-one thousand, eighty-seven".