1212421341 has 16 divisors (see below), whose sum is σ = 1629218304. Its totient is φ = 801977664.

The previous prime is 1212421339. The next prime is 1212421349. The reversal of 1212421341 is 1431242121.

It is not a de Polignac number, because 1212421341 - 2¹ = 1212421339 is a prime.

It is a super-2 number, since 2×1212421341² = 2939931016224476562, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212421349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209215 + ... + 214931.

It is an arithmetic number, because the mean of its divisors is an integer number (101826144).

Almost surely, 2^1212421341 is an apocalyptic number.

It is an amenable number.

1212421341 is a deficient number, since it is larger than the sum of its proper divisors (416796963).

1212421341 is a wasteful number, since it uses less digits than its factorization.

1212421341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6260.

The product of its digits is 384, while the sum is 21.

The square root of 1212421341 is about 34819.8411972255. The cubic root of 1212421341 is about 1066.3125583145.

Adding to 1212421341 its reverse (1431242121), we get a palindrome (2643663462).

The spelling of 1212421341 in words is "one billion, two hundred twelve million, four hundred twenty-one thousand, three hundred forty-one".