1022111144 has 16 divisors (see below), whose sum is σ = 1917839700. Its totient is φ = 510687232.

The previous prime is 1022111143. The next prime is 1022111171. The reversal of 1022111144 is 4411112201.

It can be written as a sum of positive squares in 2 ways, for example, as 632522500 + 389588644 = 25150^2 + 19738^2 .

It is a super-2 number, since 2×1022111144² = 2089422381377977472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1022111143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34067 + ... + 56610.

Almost surely, 2^1022111144 is an apocalyptic number.

It is an amenable number.

1022111144 is a deficient number, since it is larger than the sum of its proper divisors (895728556).

1022111144 is a wasteful number, since it uses less digits than its factorization.

1022111144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92092 (or 92088 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1022111144 is about 31970.4730024440. The cubic root of 1022111144 is about 1007.3167164288.

Adding to 1022111144 its reverse (4411112201), we get a palindrome (5433223345).

The spelling of 1022111144 in words is "one billion, twenty-two million, one hundred eleven thousand, one hundred forty-four".