1012221092 has 6 divisors (see below), whose sum is σ = 1771386918. Its totient is φ = 506110544.

The previous prime is 1012221071. The next prime is 1012221109. The reversal of 1012221092 is 2901222101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1008316516 + 3904576 = 31754^2 + 1976^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126527633 + ... + 126527640.

It is an arithmetic number, because the mean of its divisors is an integer number (295231153).

Almost surely, 2^1012221092 is an apocalyptic number.

It is an amenable number.

1012221092 is a deficient number, since it is larger than the sum of its proper divisors (759165826).

1012221092 is a wasteful number, since it uses less digits than its factorization.

1012221092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253055277 (or 253055275 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1012221092 is about 31815.4222351362. The cubic root of 1012221092 is about 1004.0572140853.

Adding to 1012221092 its reverse (2901222101), we get a palindrome (3913443193).

The spelling of 1012221092 in words is "one billion, twelve million, two hundred twenty-one thousand, ninety-two".