121221343102 has 8 divisors (see below), whose sum is σ = 182920829616. Its totient is φ = 60247733232.

The previous prime is 121221343081. The next prime is 121221343121. The reversal of 121221343102 is 201343122121.

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

It is a super-2 number, since 2×121221343102² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 181468743 + ... + 181469410.

It is an arithmetic number, because the mean of its divisors is an integer number (22865103702).

Almost surely, 2^121221343102 is an apocalyptic number.

121221343102 is a deficient number, since it is larger than the sum of its proper divisors (61699486514).

121221343102 is a wasteful number, since it uses less digits than its factorization.

121221343102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362938322.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121221343102 its reverse (201343122121), we get a palindrome (322564465223).

The spelling of 121221343102 in words is "one hundred twenty-one billion, two hundred twenty-one million, three hundred forty-three thousand, one hundred two".