1011212112211 has 16 divisors (see below), whose sum is σ = 1167187589568. Its totient is φ = 858116880000.

The previous prime is 1011212112151. The next prime is 1011212112271. The reversal of 1011212112211 is 1122112121101.

1011212112211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1011212112151) and next prime (1011212112271).

It is a cyclic number.

It is not a de Polignac number, because 1011212112211 - 2¹⁵ = 1011212079443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011212112271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14226861 + ... + 14297761.

It is an arithmetic number, because the mean of its divisors is an integer number (72949224348).

Almost surely, 2^{1011212112211} is an apocalyptic number.

1011212112211 is a deficient number, since it is larger than the sum of its proper divisors (155975477357).

1011212112211 is a wasteful number, since it uses less digits than its factorization.

1011212112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91182.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1011212112211 its reverse (1122112121101), we get a palindrome (2133324233312).

The spelling of 1011212112211 in words is "one trillion, eleven billion, two hundred twelve million, one hundred twelve thousand, two hundred eleven".