102102220220087 has 2 divisors, whose sum is σ = 102102220220088. Its totient is φ = 102102220220086.

The previous prime is 102102220220003. The next prime is 102102220220089. The reversal of 102102220220087 is 780022022201201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102102220220087 - 2¹⁰ = 102102220219063 is a prime.

It is a super-2 number, since 2×102102220220087² (a number of 29 digits) contains 22 as substring.

Together with 102102220220089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102220220089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051110110043 + 51051110110044.

It is an arithmetic number, because the mean of its divisors is an integer number (51051110110044).

Almost surely, 2^{102102220220087} is an apocalyptic number.

102102220220087 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102220220087 is an equidigital number, since it uses as much as digits as its factorization.

102102220220087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 29.

Adding to 102102220220087 its reverse (780022022201201), we get a palindrome (882124242421288).

The spelling of 102102220220087 in words is "one hundred two trillion, one hundred two billion, two hundred twenty million, two hundred twenty thousand, eighty-seven".