121201212111219 has 32 divisors (see below), whose sum is σ = 181206734139200. Its totient is φ = 80058602707200.

The previous prime is 121201212111191. The next prime is 121201212111223. The reversal of 121201212111219 is 912111212102121.

It is a happy number.

121201212111219 is a `hidden beast` number, since 1 + 2 + 120 + 1 + 212 + 111 + 219 = 666.

It is not a de Polignac number, because 121201212111219 - 2¹⁵ = 121201212078451 is a prime.

It is a super-2 number, since 2×121201212111219² (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 = 121201212111192 and 121201212111201.

It is not an unprimeable number, because it can be changed into a prime (121201212111229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 342779919 + ... + 343133319.

It is an arithmetic number, because the mean of its divisors is an integer number (5662710441850).

Almost surely, 2^{121201212111219} is an apocalyptic number.

121201212111219 is a deficient number, since it is larger than the sum of its proper divisors (60005522027981).

121201212111219 is a wasteful number, since it uses less digits than its factorization.

121201212111219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470052 (or 470046 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 27.

The spelling of 121201212111219 in words is "one hundred twenty-one trillion, two hundred one billion, two hundred twelve million, one hundred eleven thousand, two hundred nineteen".