121121122102012 has 24 divisors (see below), whose sum is σ = 217286161693776. Its totient is φ = 59053381890048.

The previous prime is 121121122102003. The next prime is 121121122102021. The reversal of 121121122102012 is 210201221121121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121121122102003) and next prime (121121122102021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1752499333 + ... + 1752568444.

It is an arithmetic number, because the mean of its divisors is an integer number (9053590070574).

Almost surely, 2^{121121122102012} is an apocalyptic number.

It is an amenable number.

121121122102012 is a deficient number, since it is larger than the sum of its proper divisors (96165039591764).

121121122102012 is a wasteful number, since it uses less digits than its factorization.

121121122102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505067997 (or 3505067995 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121121122102012 its reverse (210201221121121), we get a palindrome (331322343223133).

The spelling of 121121122102012 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, twelve".