1221422024 has 16 divisors (see below), whose sum is σ = 2317759920. Its totient is φ = 603352720.

The previous prime is 1221422003. The next prime is 1221422053. The reversal of 1221422024 is 4202241221.

It is a junction number, because it is equal to n+sod(n) for n = 1221421987 and 1221422005.

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, 919082 + ... + 920409.

It is an arithmetic number, because the mean of its divisors is an integer number (144859995).

Almost surely, 2^1221422024 is an apocalyptic number.

It is an amenable number.

1221422024 is a deficient number, since it is larger than the sum of its proper divisors (1096337896).

1221422024 is a wasteful number, since it uses less digits than its factorization.

1221422024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839580 (or 1839576 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1221422024 is about 34948.8486791768. The cubic root of 1221422024 is about 1068.9447260340.

Adding to 1221422024 its reverse (4202241221), we get a palindrome (5423663245).

The spelling of 1221422024 in words is "one billion, two hundred twenty-one million, four hundred twenty-two thousand, twenty-four".