11111212200010 has 64 divisors (see below), whose sum is σ = 22115187730944. Its totient is φ = 3993250521600.

The previous prime is 11111212199993. The next prime is 11111212200017. The reversal of 11111212200010 is 1000221211111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (11111212200017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121164 + ... + 4715623.

It is an arithmetic number, because the mean of its divisors is an integer number (345549808296).

Almost surely, 2^{11111212200010} is an apocalyptic number.

11111212200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111212200010 is a deficient number, since it is larger than the sum of its proper divisors (11003975530934).

11111212200010 is a wasteful number, since it uses less digits than its factorization.

11111212200010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837279.

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

Adding to 11111212200010 its reverse (1000221211111), we get a palindrome (12111433411121).

The spelling of 11111212200010 in words is "eleven trillion, one hundred eleven billion, two hundred twelve million, two hundred thousand, ten".