102102210221001 has 4 divisors (see below), whose sum is σ = 136136280294672. Its totient is φ = 68068140147332.

The previous prime is 102102210220979. The next prime is 102102210221041. The reversal of 102102210221001 is 100122012201201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102102210221001 - 2⁶ = 102102210220937 is a prime.

It is a super-2 number, since 2×102102210221001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102102210221041) 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, 17017035036831 + ... + 17017035036836.

It is an arithmetic number, because the mean of its divisors is an integer number (34034070073668).

Almost surely, 2^{102102210221001} is an apocalyptic number.

It is an amenable number.

102102210221001 is a deficient number, since it is larger than the sum of its proper divisors (34034070073671).

102102210221001 is an equidigital number, since it uses as much as digits as its factorization.

102102210221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34034070073670.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102102210221001 its reverse (100122012201201), we get a palindrome (202224222422202).

The spelling of 102102210221001 in words is "one hundred two trillion, one hundred two billion, two hundred ten million, two hundred twenty-one thousand, one".