2220237734321 has 2 divisors, whose sum is σ = 2220237734322. Its totient is φ = 2220237734320.

The previous prime is 2220237734303. The next prime is 2220237734423. The reversal of 2220237734321 is 1234377320222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1995622402225 + 224615332096 = 1412665^2 + 473936^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220237734321 - 2¹⁴ = 2220237717937 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220237734621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110118867160 + 1110118867161.

It is an arithmetic number, because the mean of its divisors is an integer number (1110118867161).

Almost surely, 2^{2220237734321} is an apocalyptic number.

It is an amenable number.

2220237734321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220237734321 is an equidigital number, since it uses as much as digits as its factorization.

2220237734321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 38.

The spelling of 2220237734321 in words is "two trillion, two hundred twenty billion, two hundred thirty-seven million, seven hundred thirty-four thousand, three hundred twenty-one".