2069221287 has 16 divisors (see below), whose sum is σ = 3177930752. Its totient is φ = 1173100320.

The previous prime is 2069221247. The next prime is 2069221339. The reversal of 2069221287 is 7821229602.

It is not a de Polignac number, because 2069221287 - 2⁶ = 2069221223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2069221247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385264 + ... + 390597.

It is an arithmetic number, because the mean of its divisors is an integer number (198620672).

Almost surely, 2^2069221287 is an apocalyptic number.

2069221287 is a deficient number, since it is larger than the sum of its proper divisors (1108709465).

2069221287 is a wasteful number, since it uses less digits than its factorization.

2069221287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775998.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2069221287 is about 45488.6940568753. The cubic root of 2069221287 is about 1274.2920662060.

The spelling of 2069221287 in words is "two billion, sixty-nine million, two hundred twenty-one thousand, two hundred eighty-seven".