1222114212 has 72 divisors (see below), whose sum is σ = 3389742720. Its totient is φ = 368176320.

The previous prime is 1222114211. The next prime is 1222114217. The reversal of 1222114212 is 2124112221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1222114211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59589 + ... + 77427.

It is an arithmetic number, because the mean of its divisors is an integer number (47079760).

Almost surely, 2^1222114212 is an apocalyptic number.

1222114212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222114212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1694871360).

1222114212 is an abundant number, since it is smaller than the sum of its proper divisors (2167628508).

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

1222114212 is a wasteful number, since it uses less digits than its factorization.

1222114212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18033 (or 18028 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 1222114212 is about 34958.7501492831. The cubic root of 1222114212 is about 1069.1466139348.

Adding to 1222114212 its reverse (2124112221), we get a palindrome (3346226433).

The spelling of 1222114212 in words is "one billion, two hundred twenty-two million, one hundred fourteen thousand, two hundred twelve".