102002120122001 has 8 divisors (see below), whose sum is σ = 112194668565408. Its totient is φ = 92729200109700.

The previous prime is 102002120121997. The next prime is 102002120122013. The reversal of 102002120122001 is 100221021200201.

It is not a de Polignac number, because 102002120122001 - 2² = 102002120121997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102002120122031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38317849955 + ... + 38317852616.

It is an arithmetic number, because the mean of its divisors is an integer number (14024333570676).

Almost surely, 2^{102002120122001} is an apocalyptic number.

102002120122001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102002120122001 is a deficient number, since it is larger than the sum of its proper divisors (10192548443407).

102002120122001 is an frugal number, since it uses more digits than its factorization.

102002120122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76635702604 (or 76635702582 counting only the distinct ones).

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

Adding to 102002120122001 its reverse (100221021200201), we get a palindrome (202223141322202).

The spelling of 102002120122001 in words is "one hundred two trillion, two billion, one hundred twenty million, one hundred twenty-two thousand, one".