121001210219 has 8 divisors (see below), whose sum is σ = 124574801472. Its totient is φ = 117462146760.

The previous prime is 121001210203. The next prime is 121001210227. The reversal of 121001210219 is 912012100121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121001210219 - 2⁴ = 121001210203 is a prime.

It is a super-2 number, since 2×121001210219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121001210219.

It is not an unprimeable number, because it can be changed into a prime (121001210119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8624837 + ... + 8638854.

It is an arithmetic number, because the mean of its divisors is an integer number (15571850184).

Almost surely, 2^121001210219 is an apocalyptic number.

121001210219 is a deficient number, since it is larger than the sum of its proper divisors (3573591253).

121001210219 is a wasteful number, since it uses less digits than its factorization.

121001210219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17263897.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 121001210219 in words is "one hundred twenty-one billion, one million, two hundred ten thousand, two hundred nineteen".