2970221305489 has 27 divisors (see below), whose sum is σ = 3189153425211. Its totient is φ = 2765903153040.

The previous prime is 2970221305481. The next prime is 2970221305507. The reversal of 2970221305489 is 9845031220792.

It is a happy number.

The square root of 2970221305489 is 1723433.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 96586073089 + 2873635232400 = 310783^2 + 1695180^2 .

It is not a de Polignac number, because 2970221305489 - 2³ = 2970221305481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2970221305481) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1997458104 + ... + 1997459590.

Almost surely, 2^{2970221305489} is an apocalyptic number.

2970221305489 is the 1723433-rd square number.

2970221305489 is the 861717-th centered octagonal number.

It is an amenable number.

2970221305489 is a deficient number, since it is larger than the sum of its proper divisors (218932119722).

2970221305489 is an frugal number, since it uses more digits than its factorization.

2970221305489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 2970221305489 in words is "two trillion, nine hundred seventy billion, two hundred twenty-one million, three hundred five thousand, four hundred eighty-nine".