2420221249 has 2 divisors, whose sum is σ = 2420221250. Its totient is φ = 2420221248.

The previous prime is 2420221213. The next prime is 2420221259. The reversal of 2420221249 is 9421220242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1559855025 + 860366224 = 39495^2 + 29332^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420221249 - 2¹¹ = 2420219201 is a prime.

It is a super-2 number, since 2×2420221249² = 11714941788222240002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2420221259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210110624 + 1210110625.

It is an arithmetic number, because the mean of its divisors is an integer number (1210110625).

Almost surely, 2^2420221249 is an apocalyptic number.

It is an amenable number.

2420221249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420221249 is an equidigital number, since it uses as much as digits as its factorization.

2420221249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2420221249 is about 49195.7442163446. The cubic root of 2420221249 is about 1342.6156027266.

It can be divided in two parts, 24202 and 21249, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 2420221249 in words is "two billion, four hundred twenty million, two hundred twenty-one thousand, two hundred forty-nine".