2213021040 has 80 divisors (see below), whose sum is σ = 6866667648. Its totient is φ = 589596928.

The previous prime is 2213021039. The next prime is 2213021047. The reversal of 2213021040 is 401203122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213021047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304327 + ... + 311513.

Almost surely, 2^2213021040 is an apocalyptic number.

2213021040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213021040 is an abundant number, since it is smaller than the sum of its proper divisors (4653646608).

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

2213021040 is a wasteful number, since it uses less digits than its factorization.

2213021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8486 (or 8480 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2213021040 is about 47042.7575722342. The cubic root of 2213021040 is about 1303.1523183319.

Adding to 2213021040 its reverse (401203122), we get a palindrome (2614224162).

The spelling of 2213021040 in words is "two billion, two hundred thirteen million, twenty-one thousand, forty".