212234421221403 has 16 divisors (see below), whose sum is σ = 331292755078656. Its totient is φ = 118318841098560.

The previous prime is 212234421221399. The next prime is 212234421221437. The reversal of 212234421221403 is 304122124432212.

It is not a de Polignac number, because 212234421221403 - 2² = 212234421221399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212234421221203) 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, 123248791951 + ... + 123248793672.

It is an arithmetic number, because the mean of its divisors is an integer number (20705797192416).

Almost surely, 2^{212234421221403} is an apocalyptic number.

212234421221403 is a deficient number, since it is larger than the sum of its proper divisors (119058333857253).

212234421221403 is a wasteful number, since it uses less digits than its factorization.

212234421221403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246497585674.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 212234421221403 its reverse (304122124432212), we get a palindrome (516356545653615).

The spelling of 212234421221403 in words is "two hundred twelve trillion, two hundred thirty-four billion, four hundred twenty-one million, two hundred twenty-one thousand, four hundred three".