11112210000000 has 1536 divisors, whose sum is σ = 42514766161920. Its totient is φ = 2782080000000.

The previous prime is 11112209999993. The next prime is 11112210000011. The reversal of 11112210000000 is 1221111.

It is a happy number.

It is a super-2 number, since 2×11112210000000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 156509999965 + ... + 156510000035.

It is an arithmetic number, because the mean of its divisors is an integer number (27678884220).

Almost surely, 2^{11112210000000} is an apocalyptic number.

11112210000000 is a gapful number since it is divisible by the number (10) 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 11112210000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21257383080960).

11112210000000 is an abundant number, since it is smaller than the sum of its proper divisors (31402556161920).

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

11112210000000 is an frugal number, since it uses more digits than its factorization.

11112210000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11112210000000 its reverse (1221111), we get a palindrome (11112211221111).

The spelling of 11112210000000 in words is "eleven trillion, one hundred twelve billion, two hundred ten million", and thus it is an aban number.