102100121212202 has 4 divisors (see below), whose sum is σ = 153150181818306. Its totient is φ = 51050060606100.

The previous prime is 102100121212189. The next prime is 102100121212211. The reversal of 102100121212202 is 202212121001201.

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

It can be written as a sum of positive squares in only one way, i.e., 88269613926481 + 13830507285721 = 9395191^2 + 3718939^2 .

It is a super-3 number, since 3×102100121212202³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 25525030303049 + ... + 25525030303052.

Almost surely, 2^{102100121212202} is an apocalyptic number.

102100121212202 is a deficient number, since it is larger than the sum of its proper divisors (51050060606104).

102100121212202 is an equidigital number, since it uses as much as digits as its factorization.

102100121212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51050060606103.

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

Adding to 102100121212202 its reverse (202212121001201), we get a palindrome (304312242213403).

The spelling of 102100121212202 in words is "one hundred two trillion, one hundred billion, one hundred twenty-one million, two hundred twelve thousand, two hundred two".