121012212121102 has 8 divisors (see below), whose sum is σ = 187373747800512. Its totient is φ = 58554296187600.

The previous prime is 121012212121091. The next prime is 121012212121103. The reversal of 121012212121102 is 201121212210121.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 121012212121102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012212121103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 975904936399 + ... + 975904936522.

It is an arithmetic number, because the mean of its divisors is an integer number (23421718475064).

Almost surely, 2^{121012212121102} is an apocalyptic number.

121012212121102 is a deficient number, since it is larger than the sum of its proper divisors (66361535679410).

121012212121102 is a wasteful number, since it uses less digits than its factorization.

121012212121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951809872954.

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

Adding to 121012212121102 its reverse (201121212210121), we get a palindrome (322133424331223).

The spelling of 121012212121102 in words is "one hundred twenty-one trillion, twelve billion, two hundred twelve million, one hundred twenty-one thousand, one hundred two".