102121121121202 has 8 divisors (see below), whose sum is σ = 153181852908912. Its totient is φ = 51060503484900.

The previous prime is 102121121121199. The next prime is 102121121121209. The reversal of 102121121121202 is 202121121121201.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 102121121121202.

It is not an unprimeable number, because it can be changed into a prime (102121121121209) 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, 26265124 + ... + 29901487.

It is an arithmetic number, because the mean of its divisors is an integer number (19147731613614).

Almost surely, 2^{102121121121202} is an apocalyptic number.

102121121121202 is a deficient number, since it is larger than the sum of its proper divisors (51060731787710).

102121121121202 is an equidigital number, since it uses as much as digits as its factorization.

102121121121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57075704.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102121121121202 its reverse (202121121121201), we get a palindrome (304242242242403).

Subtracting 102121121121202 from its reverse (202121121121201), we obtain a palindrome (99999999999999).

The spelling of 102121121121202 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred two".