11111222010 has 32 divisors (see below), whose sum is σ = 30476495232. Its totient is φ = 2539707840.

The previous prime is 11111221991. The next prime is 11111222069. The reversal of 11111222010 is 1022211111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26455081 + ... + 26455500.

It is an arithmetic number, because the mean of its divisors is an integer number (952390476).

Almost surely, 2^11111222010 is an apocalyptic number.

11111222010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11111222010 is an abundant number, since it is smaller than the sum of its proper divisors (19365273222).

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

11111222010 is a wasteful number, since it uses less digits than its factorization.

11111222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52910598.

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

Adding to 11111222010 its reverse (1022211111), we get a palindrome (12133433121).

The spelling of 11111222010 in words is "eleven billion, one hundred eleven million, two hundred twenty-two thousand, ten".