1220211210110 has 32 divisors (see below), whose sum is σ = 2219460188832. Its totient is φ = 482961404800.

The previous prime is 1220211210077. The next prime is 1220211210139. The reversal of 1220211210110 is 110121120221.

It is a super-2 number, since 2×1220211210110² (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, 1321304 + ... + 2046036.

It is an arithmetic number, because the mean of its divisors is an integer number (69358130901).

Almost surely, 2^{1220211210110} is an apocalyptic number.

1220211210110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220211210110 is a deficient number, since it is larger than the sum of its proper divisors (999248978722).

1220211210110 is a wasteful number, since it uses less digits than its factorization.

1220211210110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726508.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220211210110 its reverse (110121120221), we get a palindrome (1330332330331).

The spelling of 1220211210110 in words is "one trillion, two hundred twenty billion, two hundred eleven million, two hundred ten thousand, one hundred ten".