2211040690 has 8 divisors (see below), whose sum is σ = 3979873260. Its totient is φ = 884416272.

The previous prime is 2211040687. The next prime is 2211040691. The reversal of 2211040690 is 960401122.

2211040690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1996213041 + 214827649 = 44679^2 + 14657^2 .

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

It is a super-2 number, since 2×2211040690² = 9777401865671352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2211040691) 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, 110552025 + ... + 110552044.

Almost surely, 2^2211040690 is an apocalyptic number.

2211040690 is a deficient number, since it is larger than the sum of its proper divisors (1768832570).

2211040690 is a wasteful number, since it uses less digits than its factorization.

2211040690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221104076.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2211040690 is about 47021.7044565592. The cubic root of 2211040690 is about 1302.7634881883.

The spelling of 2211040690 in words is "two billion, two hundred eleven million, forty thousand, six hundred ninety".