1011111012212 has 48 divisors (see below), whose sum is σ = 2052794161152. Its totient is φ = 426794561760.

The previous prime is 1011111012209. The next prime is 1011111012253. The reversal of 1011111012212 is 2122101111101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1695503 + ... + 2212905.

It is an arithmetic number, because the mean of its divisors is an integer number (42766545024).

Almost surely, 2^{1011111012212} is an apocalyptic number.

It is an amenable number.

1011111012212 is an abundant number, since it is smaller than the sum of its proper divisors (1041683148940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011111012212 is a wasteful number, since it uses less digits than its factorization.

1011111012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518468 (or 518466 counting only the distinct ones).

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

Adding to 1011111012212 its reverse (2122101111101), we get a palindrome (3133212123313).

The spelling of 1011111012212 in words is "one trillion, eleven billion, one hundred eleven million, twelve thousand, two hundred twelve".