1211421422 has 16 divisors (see below), whose sum is σ = 1858948080. Its totient is φ = 591924672.

The previous prime is 1211421397. The next prime is 1211421461. The reversal of 1211421422 is 2241241121.

It is a super-3 number, since 3×1211421422³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211421394 and 1211421403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22148 + ... + 53975.

It is an arithmetic number, because the mean of its divisors is an integer number (116184255).

Almost surely, 2^1211421422 is an apocalyptic number.

1211421422 is a deficient number, since it is larger than the sum of its proper divisors (647526658).

1211421422 is a wasteful number, since it uses less digits than its factorization.

1211421422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76307.

The product of its digits is 256, while the sum is 20.

The square root of 1211421422 is about 34805.4797697144. The cubic root of 1211421422 is about 1066.0193380725.

Adding to 1211421422 its reverse (2241241121), we get a palindrome (3452662543).

The spelling of 1211421422 in words is "one billion, two hundred eleven million, four hundred twenty-one thousand, four hundred twenty-two".