1211112102219 has 4 divisors (see below), whose sum is σ = 1614816136296. Its totient is φ = 807408068144.

The previous prime is 1211112102217. The next prime is 1211112102283. The reversal of 1211112102219 is 9122012111121.

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 1211112102219 - 2¹ = 1211112102217 is a prime.

It is a super-2 number, since 2×1211112102219² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1211112102217) 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, 201852017034 + ... + 201852017039.

It is an arithmetic number, because the mean of its divisors is an integer number (403704034074).

Almost surely, 2^{1211112102219} is an apocalyptic number.

1211112102219 is a deficient number, since it is larger than the sum of its proper divisors (403704034077).

1211112102219 is an equidigital number, since it uses as much as digits as its factorization.

1211112102219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403704034076.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 1211112102219 in words is "one trillion, two hundred eleven billion, one hundred twelve million, one hundred two thousand, two hundred nineteen".