102001222001 has 4 divisors (see below), whose sum is σ = 116572825152. Its totient is φ = 87429618852.

The previous prime is 102001221967. The next prime is 102001222111. The reversal of 102001222001 is 100222100201.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100222100201 = 19 ⋅5274847379.

It is a cyclic number.

It is not a de Polignac number, because 102001222001 - 2¹⁸ = 102000959857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102001227001) 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, 7285801565 + ... + 7285801578.

It is an arithmetic number, because the mean of its divisors is an integer number (29143206288).

Almost surely, 2^102001222001 is an apocalyptic number.

It is an amenable number.

102001222001 is a deficient number, since it is larger than the sum of its proper divisors (14571603151).

102001222001 is an equidigital number, since it uses as much as digits as its factorization.

102001222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14571603150.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102001222001 its reverse (100222100201), we get a palindrome (202223322202).

The spelling of 102001222001 in words is "one hundred two billion, one million, two hundred twenty-two thousand, one".