121322211021992 has 16 divisors (see below), whose sum is σ = 227490948951540. Its totient is φ = 60657957968256.

The previous prime is 121322211021919. The next prime is 121322211022013. The reversal of 121322211021992 is 299120112223121.

It can be written as a sum of positive squares in 2 ways, for example, as 116983130383876 + 4339080638116 = 10815874^2 + 2083046^2 .

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, 393279023 + ... + 393587390.

Almost surely, 2^{121322211021992} is an apocalyptic number.

It is an amenable number.

121322211021992 is a deficient number, since it is larger than the sum of its proper divisors (106168737929548).

121322211021992 is a wasteful number, since it uses less digits than its factorization.

121322211021992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786885692 (or 786885688 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 121322211021992 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, two hundred eleven million, twenty-one thousand, nine hundred ninety-two".