102021120001 has 16 divisors (see below), whose sum is σ = 111811000320. Its totient is φ = 92669091840.

The previous prime is 102021119971. The next prime is 102021120023. The reversal of 102021120001 is 100021120201.

It is a cyclic number.

It is not a de Polignac number, because 102021120001 - 2⁹ = 102021119489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102021120001.

It is not an unprimeable number, because it can be changed into a prime (102021120031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70336 + ... + 457153.

It is an arithmetic number, because the mean of its divisors is an integer number (6988187520).

Almost surely, 2^102021120001 is an apocalyptic number.

It is an amenable number.

102021120001 is a deficient number, since it is larger than the sum of its proper divisors (9789880319).

102021120001 is a wasteful number, since it uses less digits than its factorization.

102021120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527904.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102021120001 its reverse (100021120201), we get a palindrome (202042240202).

The spelling of 102021120001 in words is "one hundred two billion, twenty-one million, one hundred twenty thousand, one".