1212112210219 has 4 divisors (see below), whose sum is σ = 1212217595296. Its totient is φ = 1212006825144.

The previous prime is 1212112210201. The next prime is 1212112210247. The reversal of 1212112210219 is 9120122112121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1212112210219 - 2¹¹ = 1212112208171 is a prime.

It is a super-2 number, since 2×1212112210219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212112210193 and 1212112210202.

It is not an unprimeable number, because it can be changed into a prime (1212112210289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52675284 + ... + 52698289.

It is an arithmetic number, because the mean of its divisors is an integer number (303054398824).

Almost surely, 2^{1212112210219} is an apocalyptic number.

1212112210219 is a deficient number, since it is larger than the sum of its proper divisors (105385077).

1212112210219 is a wasteful number, since it uses less digits than its factorization.

1212112210219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105385076.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 1212112210219 in words is "one trillion, two hundred twelve billion, one hundred twelve million, two hundred ten thousand, two hundred nineteen".