102220100051 has 2 divisors, whose sum is σ = 102220100052. Its totient is φ = 102220100050.

The previous prime is 102220099991. The next prime is 102220100053. The reversal of 102220100051 is 150001022201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102220100051 is a prime.

Together with 102220100053, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102220099999 and 102220100035.

It is not a weakly prime, because it can be changed into another prime (102220100053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110050025 + 51110050026.

It is an arithmetic number, because the mean of its divisors is an integer number (51110050026).

Almost surely, 2^102220100051 is an apocalyptic number.

102220100051 is a deficient number, since it is larger than the sum of its proper divisors (1).

102220100051 is an equidigital number, since it uses as much as digits as its factorization.

102220100051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 102220100051 its reverse (150001022201), we get a palindrome (252221122252).

The spelling of 102220100051 in words is "one hundred two billion, two hundred twenty million, one hundred thousand, fifty-one".