1222011221110 has 32 divisors (see below), whose sum is σ = 2270880893952. Its totient is φ = 472973017440.

The previous prime is 1222011221099. The next prime is 1222011221147. The reversal of 1222011221110 is 111221102221.

It is a super-2 number, since 2×1222011221110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2078409 + ... + 2600731.

It is an arithmetic number, because the mean of its divisors is an integer number (70965027936).

Almost surely, 2^{1222011221110} is an apocalyptic number.

1222011221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222011221110 is a deficient number, since it is larger than the sum of its proper divisors (1048869672842).

1222011221110 is a wasteful number, since it uses less digits than its factorization.

1222011221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529908.

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

Adding to 1222011221110 its reverse (111221102221), we get a palindrome (1333232323331).

The spelling of 1222011221110 in words is "one trillion, two hundred twenty-two billion, eleven million, two hundred twenty-one thousand, one hundred ten".