11101120212 has 192 divisors, whose sum is σ = 33801764864. Its totient is φ = 2756436480.

The previous prime is 11101120201. The next prime is 11101120229. The reversal of 11101120212 is 21202110111.

It is a super-2 number, since 2×11101120212² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1248093 + ... + 1256955.

Almost surely, 2^11101120212 is an apocalyptic number.

11101120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11101120212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16900882432).

11101120212 is an abundant number, since it is smaller than the sum of its proper divisors (22700644652).

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

11101120212 is a wasteful number, since it uses less digits than its factorization.

11101120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958 (or 8956 counting only the distinct ones).

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

Adding to 11101120212 its reverse (21202110111), we get a palindrome (32303230323).

The spelling of 11101120212 in words is "eleven billion, one hundred one million, one hundred twenty thousand, two hundred twelve".