1121236666 has 16 divisors (see below), whose sum is σ = 1942678080. Its totient is φ = 479673280.

The previous prime is 1121236643. The next prime is 1121236667. The reversal of 1121236666 is 6666321211.

It is a super-2 number, since 2×1121236666² = 2514343322365591112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (1121236667) 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, 1498606 + ... + 1499353.

It is an arithmetic number, because the mean of its divisors is an integer number (121417380).

Almost surely, 2^1121236666 is an apocalyptic number.

1121236666 is a deficient number, since it is larger than the sum of its proper divisors (821441414).

1121236666 is a wasteful number, since it uses less digits than its factorization.

1121236666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997989.

The product of its digits is 15552, while the sum is 34.

The square root of 1121236666 is about 33484.8721962620. The cubic root of 1121236666 is about 1038.8809048307.

Adding to 1121236666 its reverse (6666321211), we get a palindrome (7787557877).

The spelling of 1121236666 in words is "one billion, one hundred twenty-one million, two hundred thirty-six thousand, six hundred sixty-six".