1212421211030 has 32 divisors (see below), whose sum is σ = 2192079158784. Its totient is φ = 482812233856.

The previous prime is 1212421211021. The next prime is 1212421211033. The reversal of 1212421211030 is 301121242121.

It is a junction number, because it is equal to n+sod(n) for n = 1212421210993 and 1212421211011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212421211033) 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, 2203019 + ... + 2697801.

It is an arithmetic number, because the mean of its divisors is an integer number (68502473712).

Almost surely, 2^{1212421211030} is an apocalyptic number.

1212421211030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212421211030 is a deficient number, since it is larger than the sum of its proper divisors (979657947754).

1212421211030 is a wasteful number, since it uses less digits than its factorization.

1212421211030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495880.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1212421211030 its reverse (301121242121), we get a palindrome (1513542453151).

The spelling of 1212421211030 in words is "one trillion, two hundred twelve billion, four hundred twenty-one million, two hundred eleven thousand, thirty".