1220222201210 has 16 divisors (see below), whose sum is σ = 2196761737896. Its totient is φ = 488008485888.

The previous prime is 1220222201201. The next prime is 1220222201227. The reversal of 1220222201210 is 121022220221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 952570144009 + 267652057201 = 975997^2 + 517351^2 .

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, 9985559 + ... + 10107018.

Almost surely, 2^{1220222201210} is an apocalyptic number.

1220222201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220222201210 is a deficient number, since it is larger than the sum of its proper divisors (976539536686).

1220222201210 is a wasteful number, since it uses less digits than its factorization.

1220222201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20098657.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220222201210 its reverse (121022220221), we get a palindrome (1341244421431).

It can be divided in two parts, 122022 and 2201210, that added together give a palindrome (2323232).

The spelling of 1220222201210 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, two hundred one thousand, two hundred ten".