102201002021 has 8 divisors (see below), whose sum is σ = 106665287424. Its totient is φ = 97738446960.

The previous prime is 102201002017. The next prime is 102201002041. The reversal of 102201002021 is 120200102201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102201002021 - 2² = 102201002017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102201001993 and 102201002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201002041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311150 + ... + 548831.

It is an arithmetic number, because the mean of its divisors is an integer number (13333160928).

Almost surely, 2^102201002021 is an apocalyptic number.

It is an amenable number.

102201002021 is a deficient number, since it is larger than the sum of its proper divisors (4464285403).

102201002021 is an equidigital number, since it uses as much as digits as its factorization.

102201002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865171.

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

Adding to 102201002021 its reverse (120200102201), we get a palindrome (222401104222).

The spelling of 102201002021 in words is "one hundred two billion, two hundred one million, two thousand, twenty-one".