2212717240 has 16 divisors (see below), whose sum is σ = 4978613880. Its totient is φ = 885086880.

The previous prime is 2212717223. The next prime is 2212717249. The reversal of 2212717240 is 427172122.

It is a super-2 number, since 2×2212717240² = 9792235168386435200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2212717199 and 2212717208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212717249) 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, 27658926 + ... + 27659005.

Almost surely, 2^2212717240 is an apocalyptic number.

2212717240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212717240 is an abundant number, since it is smaller than the sum of its proper divisors (2765896640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212717240 is a wasteful number, since it uses less digits than its factorization.

2212717240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55317942 (or 55317938 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 2212717240 is about 47039.5284840314. The cubic root of 2212717240 is about 1303.0926840455.

Adding to 2212717240 its reverse (427172122), we get a palindrome (2639889362).

The spelling of 2212717240 in words is "two billion, two hundred twelve million, seven hundred seventeen thousand, two hundred forty".