121213213119 has 96 divisors (see below), whose sum is σ = 201120251904. Its totient is φ = 69942942720.

The previous prime is 121213213117. The next prime is 121213213127. The reversal of 121213213119 is 911312312121.

121213213119 is a `hidden beast` number, since 1 + 2 + 1 + 21 + 321 + 311 + 9 = 666.

It is not a de Polignac number, because 121213213119 - 2¹ = 121213213117 is a prime.

It is a super-2 number, since 2×121213213119² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121213213092 and 121213213101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213213111) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7538082 + ... + 7554144.

It is an arithmetic number, because the mean of its divisors is an integer number (2095002624).

Almost surely, 2^121213213119 is an apocalyptic number.

121213213119 is a deficient number, since it is larger than the sum of its proper divisors (79907038785).

121213213119 is a wasteful number, since it uses less digits than its factorization.

121213213119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16197 (or 16194 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The spelling of 121213213119 in words is "one hundred twenty-one billion, two hundred thirteen million, two hundred thirteen thousand, one hundred nineteen".