1102209291 has 6 divisors (see below), whose sum is σ = 1592080100. Its totient is φ = 734806188.

The previous prime is 1102209271. The next prime is 1102209301. The reversal of 1102209291 is 1929022011.

It is not a de Polignac number, because 1102209291 - 2¹³ = 1102201099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102209221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61233841 + ... + 61233858.

Almost surely, 2^1102209291 is an apocalyptic number.

1102209291 is a deficient number, since it is larger than the sum of its proper divisors (489870809).

1102209291 is a wasteful number, since it uses less digits than its factorization.

1102209291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122467705 (or 122467702 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1102209291 is about 33199.5375118389. The cubic root of 1102209291 is about 1032.9707463788.

It can be divided in two parts, 1102209 and 291, that added together give a square (1102500 = 1050²).

The spelling of 1102209291 in words is "one billion, one hundred two million, two hundred nine thousand, two hundred ninety-one".