1222333402212 has 72 divisors (see below), whose sum is σ = 3523196299896. Its totient is φ = 353978901504.

The previous prime is 1222333402163. The next prime is 1222333402217. The reversal of 1222333402212 is 2122043332221.

1222333402212 is a `hidden beast` number, since 1 + 2 + 2 + 233 + 3 + 402 + 21 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9022340196 + 1213311062016 = 94986^2 + 1101504^2 .

It is not an unprimeable number, because it can be changed into a prime (1222333402217) 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, 76810383 + ... + 76826294.

It is an arithmetic number, because the mean of its divisors is an integer number (48933281943).

Almost surely, 2^{1222333402212} is an apocalyptic number.

1222333402212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1222333402212 is an abundant number, since it is smaller than the sum of its proper divisors (2300862897684).

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

1222333402212 is a wasteful number, since it uses less digits than its factorization.

1222333402212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153636717 (or 153636712 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1222333402212 its reverse (2122043332221), we get a palindrome (3344376734433).

The spelling of 1222333402212 in words is "one trillion, two hundred twenty-two billion, three hundred thirty-three million, four hundred two thousand, two hundred twelve".