11121222210000 has 200 divisors, whose sum is σ = 41029472915904. Its totient is φ = 2541993600000.

The previous prime is 11121222209989. The next prime is 11121222210037. The reversal of 11121222210000 is 1222212111.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26269101 + ... + 26689100.

Almost surely, 2^{11121222210000} is an apocalyptic number.

11121222210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121222210000 is an abundant number, since it is smaller than the sum of its proper divisors (29908250705904).

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

11121222210000 is an equidigital number, since it uses as much as digits as its factorization.

11121222210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52958239 (or 52958218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11121222210000 its reverse (1222212111), we get a palindrome (11122444422111).

The spelling of 11121222210000 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred ten thousand".