121021342102 has 8 divisors (see below), whose sum is σ = 181545210000. Its totient is φ = 60506272104.

The previous prime is 121021342081. The next prime is 121021342103. The reversal of 121021342102 is 201243120121.

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

It is a super-3 number, since 3×121021342102³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121021342102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121021342103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2164977 + ... + 2220172.

It is an arithmetic number, because the mean of its divisors is an integer number (22693151250).

Almost surely, 2^121021342102 is an apocalyptic number.

121021342102 is a deficient number, since it is larger than the sum of its proper divisors (60523867898).

121021342102 is a wasteful number, since it uses less digits than its factorization.

121021342102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398950.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121021342102 its reverse (201243120121), we get a palindrome (322264462223).

The spelling of 121021342102 in words is "one hundred twenty-one billion, twenty-one million, three hundred forty-two thousand, one hundred two".