102210002121001 has 4 divisors (see below), whose sum is σ = 102210022385604. Its totient is φ = 102209981856400.

The previous prime is 102210002120983. The next prime is 102210002121013. The reversal of 102210002121001 is 100121200012201.

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 10338160520601 + 91871841600400 = 3215301^2 + 9584980^2 .

It is a cyclic number.

It is not a de Polignac number, because 102210002121001 - 2¹⁹ = 102210001596713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102210002121401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4055991 + ... + 14861731.

It is an arithmetic number, because the mean of its divisors is an integer number (25552505596401).

Almost surely, 2^{102210002121001} is an apocalyptic number.

It is an amenable number.

102210002121001 is a deficient number, since it is larger than the sum of its proper divisors (20264603).

102210002121001 is an equidigital number, since it uses as much as digits as its factorization.

102210002121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20264602.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102210002121001 its reverse (100121200012201), we get a palindrome (202331202133202).

The spelling of 102210002121001 in words is "one hundred two trillion, two hundred ten billion, two million, one hundred twenty-one thousand, one".