1011222653 has 32 divisors (see below), whose sum is σ = 1213056000. Its totient is φ = 842300592.

The previous prime is 1011222629. The next prime is 1011222659. The reversal of 1011222653 is 3562221101.

It is not a de Polignac number, because 1011222653 - 2¹⁶ = 1011157117 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 (1011222659) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2165126 + ... + 2165592.

It is an arithmetic number, because the mean of its divisors is an integer number (37908000).

Almost surely, 2^1011222653 is an apocalyptic number.

It is an amenable number.

1011222653 is a deficient number, since it is larger than the sum of its proper divisors (201833347).

1011222653 is an equidigital number, since it uses as much as digits as its factorization.

1011222653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1011222653 is about 31799.7272472580. The cubic root of 1011222653 is about 1003.7269767215.

Adding to 1011222653 its reverse (3562221101), we get a palindrome (4573443754).

The spelling of 1011222653 in words is "one billion, eleven million, two hundred twenty-two thousand, six hundred fifty-three".