102210212221001 has 4 divisors (see below), whose sum is σ = 102211744192404. Its totient is φ = 102208680249600.

The previous prime is 102210212220997. The next prime is 102210212221127. The reversal of 102210212221001 is 100122212012201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41892621947401 + 60317590273600 = 6472451^2 + 7766440^2 .

It is a cyclic number.

It is not a de Polignac number, because 102210212221001 - 2² = 102210212220997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102210212223001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765885620 + ... + 766019061.

It is an arithmetic number, because the mean of its divisors is an integer number (25552936048101).

Almost surely, 2^{102210212221001} is an apocalyptic number.

It is an amenable number.

102210212221001 is a deficient number, since it is larger than the sum of its proper divisors (1531971403).

102210212221001 is an equidigital number, since it uses as much as digits as its factorization.

102210212221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531971402.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102210212221001 its reverse (100122212012201), we get a palindrome (202332424233202).

The spelling of 102210212221001 in words is "one hundred two trillion, two hundred ten billion, two hundred twelve million, two hundred twenty-one thousand, one".