2211148069 has 8 divisors (see below), whose sum is σ = 2420273912. Its totient is φ = 2007599040.

The previous prime is 2211148063. The next prime is 2211148087. The reversal of 2211148069 is 9608411122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31472100 + 2179675969 = 5610^2 + 46687^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211148069 is a prime.

It is a super-2 number, since 2×2211148069² = 9778351566084857522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211148063) 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, 1393374 + ... + 1394959.

It is an arithmetic number, because the mean of its divisors is an integer number (302534239).

Almost surely, 2^2211148069 is an apocalyptic number.

It is an amenable number.

2211148069 is a deficient number, since it is larger than the sum of its proper divisors (209125843).

2211148069 is a wasteful number, since it uses less digits than its factorization.

2211148069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788407.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2211148069 is about 47022.8462452030. The cubic root of 2211148069 is about 1302.7845773789.

The spelling of 2211148069 in words is "two billion, two hundred eleven million, one hundred forty-eight thousand, sixty-nine".