1222421010 has 32 divisors (see below), whose sum is σ = 2949184512. Its totient is φ = 324270720.

The previous prime is 1222420961. The next prime is 1222421087. The reversal of 1222421010 is 101242221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100939 + ... + 112398.

It is an arithmetic number, because the mean of its divisors is an integer number (92162016).

Almost surely, 2^1222421010 is an apocalyptic number.

1222421010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222421010 is an abundant number, since it is smaller than the sum of its proper divisors (1726763502).

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

1222421010 is a wasteful number, since it uses less digits than its factorization.

1222421010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213538.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1222421010 is about 34963.1378740524. The cubic root of 1222421010 is about 1069.2360721855.

Adding to 1222421010 its reverse (101242221), we get a palindrome (1323663231).

The spelling of 1222421010 in words is "one billion, two hundred twenty-two million, four hundred twenty-one thousand, ten".