1222012212211 has 12 divisors (see below), whose sum is σ = 1467380038080. Its totient is φ = 1013650681680.

The previous prime is 1222012212209. The next prime is 1222012212257. The reversal of 1222012212211 is 1122122102221.

It is not a de Polignac number, because 1222012212211 - 2¹ = 1222012212209 is a prime.

It is a super-3 number, since 3×1222012212211³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222012212011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402240816 + ... + 402243853.

It is an arithmetic number, because the mean of its divisors is an integer number (122281669840).

Almost surely, 2^{1222012212211} is an apocalyptic number.

1222012212211 is a deficient number, since it is larger than the sum of its proper divisors (245367825869).

1222012212211 is an equidigital number, since it uses as much as digits as its factorization.

1222012212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804484714 (or 804484707 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1222012212211 its reverse (1122122102221), we get a palindrome (2344134314432).

The spelling of 1222012212211 in words is "one trillion, two hundred twenty-two billion, twelve million, two hundred twelve thousand, two hundred eleven".