1111222221010 has 16 divisors (see below), whose sum is σ = 2182036361472. Its totient is φ = 404080807600.

The previous prime is 1111222220971. The next prime is 1111222221029. The reversal of 1111222221010 is 101222221111.

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, 5051009986 + ... + 5051010205.

It is an arithmetic number, because the mean of its divisors is an integer number (136377272592).

Almost surely, 2^{1111222221010} is an apocalyptic number.

1111222221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111222221010 is a deficient number, since it is larger than the sum of its proper divisors (1070814140462).

1111222221010 is a wasteful number, since it uses less digits than its factorization.

1111222221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102020209.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1111222221010 its reverse (101222221111), we get a palindrome (1212444442121).

The spelling of 1111222221010 in words is "one trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twenty-one thousand, ten".