121211122001012 has 6 divisors (see below), whose sum is σ = 212119463501778. Its totient is φ = 60605561000504.

The previous prime is 121211122000979. The next prime is 121211122001023. The reversal of 121211122001012 is 210100221112121.

It can be written as a sum of positive squares in only one way, i.e., 94121741076496 + 27089380924516 = 9701636^2 + 5204746^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15151390250123 + ... + 15151390250130.

It is an arithmetic number, because the mean of its divisors is an integer number (35353243916963).

Almost surely, 2^{121211122001012} is an apocalyptic number.

It is an amenable number.

121211122001012 is a deficient number, since it is larger than the sum of its proper divisors (90908341500766).

121211122001012 is a wasteful number, since it uses less digits than its factorization.

121211122001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30302780500257 (or 30302780500255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121211122001012 its reverse (210100221112121), we get a palindrome (331311343113133).

The spelling of 121211122001012 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred twenty-two million, one thousand, twelve".