283106020221 has 12 divisors (see below), whose sum is σ = 409012622460. Its totient is φ = 188699637120.

The previous prime is 283106020217. The next prime is 283106020231. The reversal of 283106020221 is 122020601382.

283106020221 is a `hidden beast` number, since 2 + 8 + 31 + 0 + 602 + 0 + 2 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 185924816100 + 97181204121 = 431190^2 + 311739^2 .

It is not a de Polignac number, because 283106020221 - 2² = 283106020217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283106020231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3094890 + ... + 3185051.

It is an arithmetic number, because the mean of its divisors is an integer number (34084385205).

Almost surely, 2^283106020221 is an apocalyptic number.

It is an amenable number.

283106020221 is a deficient number, since it is larger than the sum of its proper divisors (125906602239).

283106020221 is a wasteful number, since it uses less digits than its factorization.

283106020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6284956 (or 6284953 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 283106020221 in words is "two hundred eighty-three billion, one hundred six million, twenty thousand, two hundred twenty-one".