2221432012837 has 2 divisors, whose sum is σ = 2221432012838. Its totient is φ = 2221432012836.

The previous prime is 2221432012759. The next prime is 2221432012853. The reversal of 2221432012837 is 7382102341222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2206371568996 + 15060443841 = 1485386^2 + 122721^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221432012837 - 2²³ = 2221423624229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221432012796 and 2221432012805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221432012237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110716006418 + 1110716006419.

It is an arithmetic number, because the mean of its divisors is an integer number (1110716006419).

Almost surely, 2^{2221432012837} is an apocalyptic number.

It is an amenable number.

2221432012837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221432012837 is an equidigital number, since it uses as much as digits as its factorization.

2221432012837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 2221432012837 in words is "two trillion, two hundred twenty-one billion, four hundred thirty-two million, twelve thousand, eight hundred thirty-seven".