121121120202219 has 16 divisors (see below), whose sum is σ = 185227041648640. Its totient is φ = 78142658194440.

The previous prime is 121121120202193. The next prime is 121121120202233. The reversal of 121121120202219 is 912202021121121.

121121120202219 is a `hidden beast` number, since 1 + 2 + 1 + 121 + 120 + 202 + 219 = 666.

It is not a de Polignac number, because 121121120202219 - 2¹² = 121121120198123 is a prime.

It is a super-2 number, since 2×121121120202219² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121121120202192 and 121121120202201.

It is not an unprimeable number, because it can be changed into a prime (121121120242219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72354312307 + ... + 72354313980.

It is an arithmetic number, because the mean of its divisors is an integer number (11576690103040).

Almost surely, 2^{121121120202219} is an apocalyptic number.

121121120202219 is a deficient number, since it is larger than the sum of its proper divisors (64105921446421).

121121120202219 is a wasteful number, since it uses less digits than its factorization.

121121120202219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144708626327 (or 144708626321 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 121121120202219 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, one hundred twenty million, two hundred two thousand, two hundred nineteen".