1012212110111 has 4 divisors (see below), whose sum is σ = 1012214126352. Its totient is φ = 1012210093872.

The previous prime is 1012212110083. The next prime is 1012212110113. The reversal of 1012212110111 is 1110112122101.

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 1012212110111 - 2²⁶ = 1012145001247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012212110113) 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, 408086 + ... + 1480188.

It is an arithmetic number, because the mean of its divisors is an integer number (253053531588).

Almost surely, 2^{1012212110111} is an apocalyptic number.

1012212110111 is a deficient number, since it is larger than the sum of its proper divisors (2016241).

1012212110111 is an equidigital number, since it uses as much as digits as its factorization.

1012212110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016240.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1012212110111 its reverse (1110112122101), we get a palindrome (2122324232212).

The spelling of 1012212110111 in words is "one trillion, twelve billion, two hundred twelve million, one hundred ten thousand, one hundred eleven".