2221421225043 has 16 divisors (see below), whose sum is σ = 2998252974080. Its totient is φ = 1462870323936.

The previous prime is 2221421225041. The next prime is 2221421225053. The reversal of 2221421225043 is 3405221241222.

It is not a de Polignac number, because 2221421225043 - 2¹ = 2221421225041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2221421225043.

It is not an unprimeable number, because it can be changed into a prime (2221421225041) 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, 12643105 + ... + 12817602.

It is an arithmetic number, because the mean of its divisors is an integer number (187390810880).

Almost surely, 2^{2221421225043} is an apocalyptic number.

2221421225043 is a deficient number, since it is larger than the sum of its proper divisors (776831749037).

2221421225043 is a wasteful number, since it uses less digits than its factorization.

2221421225043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25461066.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 2221421225043 its reverse (3405221241222), we get a palindrome (5626642466265).

The spelling of 2221421225043 in words is "two trillion, two hundred twenty-one billion, four hundred twenty-one million, two hundred twenty-five thousand, forty-three".