1220233221222 has 64 divisors (see below), whose sum is σ = 2557670169600. Its totient is φ = 387367478784.

The previous prime is 1220233221211. The next prime is 1220233221253. The reversal of 1220233221222 is 2221223320221.

It is a super-2 number, since 2×1220233221222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220233221192 and 1220233221201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38297154 + ... + 38329002.

It is an arithmetic number, because the mean of its divisors is an integer number (39963596400).

Almost surely, 2^{1220233221222} is an apocalyptic number.

1220233221222 is an abundant number, since it is smaller than the sum of its proper divisors (1337436948378).

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

1220233221222 is a wasteful number, since it uses less digits than its factorization.

1220233221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33077.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1220233221222 its reverse (2221223320221), we get a palindrome (3441456541443).

The spelling of 1220233221222 in words is "one trillion, two hundred twenty billion, two hundred thirty-three million, two hundred twenty-one thousand, two hundred twenty-two".