102221212001 has 2 divisors, whose sum is σ = 102221212002. Its totient is φ = 102221212000.

The previous prime is 102221211979. The next prime is 102221212003. The reversal of 102221212001 is 100212122201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79835067601 + 22386144400 = 282551^2 + 149620^2 .

It is a cyclic number.

It is not a de Polignac number, because 102221212001 - 2²⁶ = 102154103137 is a prime.

Together with 102221212003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102221212003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110606000 + 51110606001.

It is an arithmetic number, because the mean of its divisors is an integer number (51110606001).

Almost surely, 2^102221212001 is an apocalyptic number.

It is an amenable number.

102221212001 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221212001 is an equidigital number, since it uses as much as digits as its factorization.

102221212001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102221212001 its reverse (100212122201), we get a palindrome (202433334202).

The spelling of 102221212001 in words is "one hundred two billion, two hundred twenty-one million, two hundred twelve thousand, one".