22200210202212 has 144 divisors (see below), whose sum is σ = 64650996393984. Its totient is φ = 6291821016000.

The previous prime is 22200210202139. The next prime is 22200210202223. The reversal of 22200210202212 is 21220201200222.

22200210202212 is a `hidden beast` number, since 2 + 220 + 0 + 210 + 20 + 2 + 212 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78129637 + ... + 78413267.

It is an arithmetic number, because the mean of its divisors is an integer number (448965252736).

Almost surely, 2^{22200210202212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22200210202212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32325498196992).

22200210202212 is an abundant number, since it is smaller than the sum of its proper divisors (42450786191772).

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

22200210202212 is a wasteful number, since it uses less digits than its factorization.

22200210202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286150 (or 286145 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22200210202212 its reverse (21220201200222), we get a palindrome (43420411402434).

The spelling of 22200210202212 in words is "twenty-two trillion, two hundred billion, two hundred ten million, two hundred two thousand, two hundred twelve".