2212025400 has 144 divisors (see below), whose sum is σ = 8000243160. Its totient is φ = 544492800.

The previous prime is 2212025383. The next prime is 2212025419. The reversal of 2212025400 is 45202122.

2212025400 is a `hidden beast` number, since 2 + 2 + 120 + 2 + 540 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23866 + ... + 70665.

Almost surely, 2^2212025400 is an apocalyptic number.

2212025400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212025400 is an abundant number, since it is smaller than the sum of its proper divisors (5788217760).

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

2212025400 is a wasteful number, since it uses less digits than its factorization.

2212025400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94566 (or 94554 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2212025400 is about 47032.1740939115. The cubic root of 2212025400 is about 1302.9568592472.

Adding to 2212025400 its reverse (45202122), we get a palindrome (2257227522).

The spelling of 2212025400 in words is "two billion, two hundred twelve million, twenty-five thousand, four hundred".