121223102 has 64 divisors (see below), whose sum is σ = 246371328. Its totient is φ = 43200000.

The previous prime is 121223083. The next prime is 121223117. The reversal of 121223102 is 201322121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 31 ways as a sum of consecutive naturals, for example, 302102 + ... + 302502.

It is an arithmetic number, because the mean of its divisors is an integer number (3849552).

Almost surely, 2^121223102 is an apocalyptic number.

121223102 is an abundant number, since it is smaller than the sum of its proper divisors (125148226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121223102 is a wasteful number, since it uses less digits than its factorization.

121223102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121223102 is about 11010.1363297645. The cubic root of 121223102 is about 494.9125472141.

Adding to 121223102 its reverse (201322121), we get a palindrome (322545223).

The spelling of 121223102 in words is "one hundred twenty-one million, two hundred twenty-three thousand, one hundred two".