121210100102 has 16 divisors (see below), whose sum is σ = 223772492832. Its totient is φ = 47951248320.

The previous prime is 121210100083. The next prime is 121210100159. The reversal of 121210100102 is 201001012121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332994599 + ... + 332994962.

It is an arithmetic number, because the mean of its divisors is an integer number (13985780802).

Almost surely, 2^121210100102 is an apocalyptic number.

121210100102 is a deficient number, since it is larger than the sum of its proper divisors (102562392730).

121210100102 is a wasteful number, since it uses less digits than its factorization.

121210100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665989583.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121210100102 its reverse (201001012121), we get a palindrome (322211112223).

The spelling of 121210100102 in words is "one hundred twenty-one billion, two hundred ten million, one hundred thousand, one hundred two".