11111122012000 has 48 divisors (see below), whose sum is σ = 27300026793312. Its totient is φ = 4444448803200.

The previous prime is 11111122011943. The next prime is 11111122012013. The reversal of 11111122012000 is 21022111111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388886252 + ... + 1388894251.

It is an arithmetic number, because the mean of its divisors is an integer number (568750558194).

Almost surely, 2^{11111122012000} is an apocalyptic number.

11111122012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111122012000 is an abundant number, since it is smaller than the sum of its proper divisors (16188904781312).

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

11111122012000 is an equidigital number, since it uses as much as digits as its factorization.

11111122012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777780528 (or 2777780510 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11111122012000 its reverse (21022111111), we get a palindrome (11132144123111).

The spelling of 11111122012000 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-two million, twelve thousand".