1222540433 has 8 divisors (see below), whose sum is σ = 1230114600. Its totient is φ = 1214980480.

The previous prime is 1222540411. The next prime is 1222540483. The reversal of 1222540433 is 3340452221.

It can be written as a sum of positive squares in 4 ways, for example, as 521985409 + 700555024 = 22847^2 + 26468^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222540433 - 2⁸ = 1222540177 is a prime.

It is a super-2 number, since 2×1222540433² = 2989210220639654978, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1222540483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206093 + ... + 211941.

It is an arithmetic number, because the mean of its divisors is an integer number (153764325).

Almost surely, 2^1222540433 is an apocalyptic number.

It is an amenable number.

1222540433 is a deficient number, since it is larger than the sum of its proper divisors (7574167).

1222540433 is a wasteful number, since it uses less digits than its factorization.

1222540433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1222540433 is about 34964.8456739051. The cubic root of 1222540433 is about 1069.2708903102.

Adding to 1222540433 its reverse (3340452221), we get a palindrome (4562992654).

The spelling of 1222540433 in words is "one billion, two hundred twenty-two million, five hundred forty thousand, four hundred thirty-three".