1222011220010 has 24 divisors (see below), whose sum is σ = 2558741861700. Its totient is φ = 418975275264.

The previous prime is 1222011219977. The next prime is 1222011220037. The reversal of 1222011220010 is 100221102221.

It can be written as a sum of positive squares in 2 ways, for example, as 1198081295761 + 23929924249 = 1094569^2 + 154693^2 .

It is a super-2 number, since 2×1222011220010² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1246949735 + ... + 1246950714.

Almost surely, 2^{1222011220010} is an apocalyptic number.

1222011220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222011220010 is an abundant number, since it is smaller than the sum of its proper divisors (1336730641690).

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

1222011220010 is a wasteful number, since it uses less digits than its factorization.

1222011220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493900470 (or 2493900463 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1222011220010 its reverse (100221102221), we get a palindrome (1322232322231).

The spelling of 1222011220010 in words is "one trillion, two hundred twenty-two billion, eleven million, two hundred twenty thousand, ten".