102202121121 has 8 divisors (see below), whose sum is σ = 136961218944. Its totient is φ = 67788885360.

The previous prime is 102202121033. The next prime is 102202121191. The reversal of 102202121121 is 121121202201.

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

It is not a de Polignac number, because 102202121121 - 2¹⁵ = 102202088353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102202121121.

It is not an unprimeable number, because it can be changed into a prime (102202121191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86464825 + ... + 86466006.

It is an arithmetic number, because the mean of its divisors is an integer number (17120152368).

Almost surely, 2^102202121121 is an apocalyptic number.

It is an amenable number.

102202121121 is a deficient number, since it is larger than the sum of its proper divisors (34759097823).

102202121121 is a wasteful number, since it uses less digits than its factorization.

102202121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172931031.

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

Adding to 102202121121 its reverse (121121202201), we get a palindrome (223323323322).

The spelling of 102202121121 in words is "one hundred two billion, two hundred two million, one hundred twenty-one thousand, one hundred twenty-one".