11101122212 has 6 divisors (see below), whose sum is σ = 19426963878. Its totient is φ = 5550561104.

The previous prime is 11101122211. The next prime is 11101122259. The reversal of 11101122212 is 21222110111.

It can be written as a sum of positive squares in only one way, i.e., 10771118656 + 330003556 = 103784^2 + 18166^2 .

It is not an unprimeable number, because it can be changed into a prime (11101122211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1387640273 + ... + 1387640280.

It is an arithmetic number, because the mean of its divisors is an integer number (3237827313).

Almost surely, 2^11101122212 is an apocalyptic number.

It is an amenable number.

11101122212 is a deficient number, since it is larger than the sum of its proper divisors (8325841666).

11101122212 is a wasteful number, since it uses less digits than its factorization.

11101122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775280557 (or 2775280555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11101122212 its reverse (21222110111), we get a palindrome (32323232323).

The spelling of 11101122212 in words is "eleven billion, one hundred one million, one hundred twenty-two thousand, two hundred twelve".