1222021400043 has 64 divisors (see below), whose sum is σ = 1717110374400. Its totient is φ = 771994903680.

The previous prime is 1222021399999. The next prime is 1222021400071. The reversal of 1222021400043 is 3400041202221.

It is not a de Polignac number, because 1222021400043 - 2⁶ = 1222021399979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222021399992 and 1222021400019.

It is not an unprimeable number, because it can be changed into a prime (1222021401043) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1107906430 + ... + 1107907532.

It is an arithmetic number, because the mean of its divisors is an integer number (26829849600).

Almost surely, 2^{1222021400043} is an apocalyptic number.

1222021400043 is a deficient number, since it is larger than the sum of its proper divisors (495088974357).

1222021400043 is a wasteful number, since it uses less digits than its factorization.

1222021400043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1222021400043 its reverse (3400041202221), we get a palindrome (4622062602264).

The spelling of 1222021400043 in words is "one trillion, two hundred twenty-two billion, twenty-one million, four hundred thousand, forty-three".