102202012121201 has 4 divisors (see below), whose sum is σ = 108213895187172. Its totient is φ = 96190129055232.

The previous prime is 102202012121197. The next prime is 102202012121219. The reversal of 102202012121201 is 102121210202201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49618499521600 + 52583512599601 = 7044040^2 + 7251449^2 .

It is a cyclic number.

It is not a de Polignac number, because 102202012121201 - 2² = 102202012121197 is a prime.

It is a super-2 number, since 2×102202012121201² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 6011883065953 = 102202012121201 / (1 + 0 + 2 + 2 + 0 + 2 + 0 + 1 + 2 + 1 + 2 + 1 + 2 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102202012121201.

It is not an unprimeable number, because it can be changed into a prime (102202012121701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3005941532960 + ... + 3005941532993.

It is an arithmetic number, because the mean of its divisors is an integer number (27053473796793).

Almost surely, 2^{102202012121201} is an apocalyptic number.

It is an amenable number.

102202012121201 is a deficient number, since it is larger than the sum of its proper divisors (6011883065971).

102202012121201 is an equidigital number, since it uses as much as digits as its factorization.

102202012121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011883065970.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102202012121201 its reverse (102121210202201), we get a palindrome (204323222323402).

The spelling of 102202012121201 in words is "one hundred two trillion, two hundred two billion, twelve million, one hundred twenty-one thousand, two hundred one".