102201022010121 has 4 divisors (see below), whose sum is σ = 136268029346832. Its totient is φ = 68134014673412.

The previous prime is 102201022010107. The next prime is 102201022010149. The reversal of 102201022010121 is 121010220102201.

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 102201022010121 - 2⁹ = 102201022009609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102201022010121.

It is not an unprimeable number, because it can be changed into a prime (102201022012121) 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, 17033503668351 + ... + 17033503668356.

It is an arithmetic number, because the mean of its divisors is an integer number (34067007336708).

Almost surely, 2^{102201022010121} is an apocalyptic number.

It is an amenable number.

102201022010121 is a deficient number, since it is larger than the sum of its proper divisors (34067007336711).

102201022010121 is an equidigital number, since it uses as much as digits as its factorization.

102201022010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34067007336710.

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

Adding to 102201022010121 its reverse (121010220102201), we get a palindrome (223211242112322).

The spelling of 102201022010121 in words is "one hundred two trillion, two hundred one billion, twenty-two million, ten thousand, one hundred twenty-one".