1146190221 has 24 divisors (see below), whose sum is σ = 1816585056. Its totient is φ = 690635040.

The previous prime is 1146190217. The next prime is 1146190231. The reversal of 1146190221 is 1220916411.

It is not a de Polignac number, because 1146190221 - 2² = 1146190217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146190231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16335 + ... + 50588.

It is an arithmetic number, because the mean of its divisors is an integer number (75691044).

Almost surely, 2^1146190221 is an apocalyptic number.

1146190221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1146190221 is a deficient number, since it is larger than the sum of its proper divisors (670394835).

1146190221 is a wasteful number, since it uses less digits than its factorization.

1146190221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67113 (or 67110 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1146190221 is about 33855.4311891017. The cubic root of 1146190221 is about 1046.5313266502.

It can be divided in two parts, 1146190 and 221, that added together give a palindrome (1146411).

The spelling of 1146190221 in words is "one billion, one hundred forty-six million, one hundred ninety thousand, two hundred twenty-one".