1222421534 has 8 divisors (see below), whose sum is σ = 1833793968. Its totient is φ = 611156880.

The previous prime is 1222421513. The next prime is 1222421579. The reversal of 1222421534 is 4351242221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13634 + ... + 51290.

It is an arithmetic number, because the mean of its divisors is an integer number (229224246).

Almost surely, 2^1222421534 is an apocalyptic number.

1222421534 is a deficient number, since it is larger than the sum of its proper divisors (611372434).

1222421534 is a wasteful number, since it uses less digits than its factorization.

1222421534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53890.

The product of its digits is 3840, while the sum is 26.

The square root of 1222421534 is about 34963.1453676582. The cubic root of 1222421534 is about 1069.2362249642.

Adding to 1222421534 its reverse (4351242221), we get a palindrome (5573663755).

The spelling of 1222421534 in words is "one billion, two hundred twenty-two million, four hundred twenty-one thousand, five hundred thirty-four".