1011022044 has 24 divisors (see below), whose sum is σ = 2381957760. Its totient is φ = 333735024.

The previous prime is 1011022043. The next prime is 1011022049. The reversal of 1011022044 is 4402201101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011022043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407754 + ... + 410225.

It is an arithmetic number, because the mean of its divisors is an integer number (99248240).

Almost surely, 2^1011022044 is an apocalyptic number.

It is an amenable number.

1011022044 is an abundant number, since it is smaller than the sum of its proper divisors (1370935716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011022044 is a wasteful number, since it uses less digits than its factorization.

1011022044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818089 (or 818087 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1011022044 is about 31796.5728341908. The cubic root of 1011022044 is about 1003.6605983358.

Adding to 1011022044 its reverse (4402201101), we get a palindrome (5413223145).

The spelling of 1011022044 in words is "one billion, eleven million, twenty-two thousand, forty-four".