1012212111 has 8 divisors (see below), whose sum is σ = 1350676480. Its totient is φ = 674277912.

The previous prime is 1012212109. The next prime is 1012212119. The reversal of 1012212111 is 1112122101.

1012212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1012212111 - 2¹ = 1012212109 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 (1012212119) 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, 128065 + ... + 135738.

It is an arithmetic number, because the mean of its divisors is an integer number (168834560).

Almost surely, 2^1012212111 is an apocalyptic number.

1012212111 is a deficient number, since it is larger than the sum of its proper divisors (338464369).

1012212111 is a wasteful number, since it uses less digits than its factorization.

1012212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265085.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1012212111 is about 31815.2810925819. The cubic root of 1012212111 is about 1004.0542445547.

Adding to 1012212111 its reverse (1112122101), we get a palindrome (2124334212).

The spelling of 1012212111 in words is "one billion, twelve million, two hundred twelve thousand, one hundred eleven".