1220221343210 has 32 divisors (see below), whose sum is σ = 2209715061120. Its totient is φ = 485129719872.

The previous prime is 1220221343167. The next prime is 1220221343213. The reversal of 1220221343210 is 123431220221.

It is a super-2 number, since 2×1220221343210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220221343213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40246877 + ... + 40277183.

It is an arithmetic number, because the mean of its divisors is an integer number (69053595660).

Almost surely, 2^{1220221343210} is an apocalyptic number.

1220221343210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220221343210 is a deficient number, since it is larger than the sum of its proper divisors (989493717910).

1220221343210 is a wasteful number, since it uses less digits than its factorization.

1220221343210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54590.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1220221343210 its reverse (123431220221), we get a palindrome (1343652563431).

The spelling of 1220221343210 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, three hundred forty-three thousand, two hundred ten".