2212021210212 has 72 divisors (see below), whose sum is σ = 6103964385792. Its totient is φ = 669853598400.

The previous prime is 2212021210199. The next prime is 2212021210213. The reversal of 2212021210212 is 2120121202122.

It is a happy number.

2212021210212 is a `hidden beast` number, since 221 + 2 + 0 + 21 + 210 + 212 = 666.

It is a super-2 number, since 2×2212021210212² (a number of 25 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2212021210213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1316163 + ... + 2481194.

It is an arithmetic number, because the mean of its divisors is an integer number (84777283136).

Almost surely, 2^{2212021210212} is an apocalyptic number.

2212021210212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2212021210212 is an abundant number, since it is smaller than the sum of its proper divisors (3891943175580).

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

2212021210212 is a wasteful number, since it uses less digits than its factorization.

2212021210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3798849 (or 3798844 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2212021210212 its reverse (2120121202122), we get a palindrome (4332142412334).

The spelling of 2212021210212 in words is "two trillion, two hundred twelve billion, twenty-one million, two hundred ten thousand, two hundred twelve".