11211122010000 has 200 divisors, whose sum is σ = 39481088432544. Its totient is φ = 2717847680000.

The previous prime is 11211122009959. The next prime is 11211122010019. The reversal of 11211122010000 is 1022111211.

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 (12).

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, 16656549 + ... + 17316548.

Almost surely, 2^{11211122010000} is an apocalyptic number.

11211122010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211122010000 is an abundant number, since it is smaller than the sum of its proper divisors (28269966422544).

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

11211122010000 is a wasteful number, since it uses less digits than its factorization.

11211122010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33973139 (or 33973118 counting only the distinct ones).

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

Adding to 11211122010000 its reverse (1022111211), we get a palindrome (11212144121211).

The spelling of 11211122010000 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-two million, ten thousand".