1012211100111 has 8 divisors (see below), whose sum is σ = 1350738547504. Its totient is φ = 674245526400.

The previous prime is 1012211100077. The next prime is 1012211100139. The reversal of 1012211100111 is 1110011122101.

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

It is not a de Polignac number, because 1012211100111 - 2¹³ = 1012211091919 is a prime.

It is a super-2 number, since 2×1012211100111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012211100211) 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, 140464216 + ... + 140471421.

It is an arithmetic number, because the mean of its divisors is an integer number (168842318438).

Almost surely, 2^{1012211100111} is an apocalyptic number.

1012211100111 is a deficient number, since it is larger than the sum of its proper divisors (338527447393).

1012211100111 is a wasteful number, since it uses less digits than its factorization.

1012211100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280936841.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1012211100111 its reverse (1110011122101), we get a palindrome (2122222222212).

The spelling of 1012211100111 in words is "one trillion, twelve billion, two hundred eleven million, one hundred thousand, one hundred eleven".