22220020201212 has 240 divisors, whose sum is σ = 62566986813408. Its totient is φ = 6851564236800.

The previous prime is 22220020201201. The next prime is 22220020201243. The reversal of 22220020201212 is 21210202002222.

22220020201212 is a `hidden beast` number, since 222 + 200 + 20 + 201 + 21 + 2 = 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 79 ways as a sum of consecutive naturals, for example, 76068423 + ... + 76359969.

Almost surely, 2^{22220020201212} 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 22220020201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31283493406704).

22220020201212 is an abundant number, since it is smaller than the sum of its proper divisors (40346966612196).

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

22220020201212 is a wasteful number, since it uses less digits than its factorization.

22220020201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291818 (or 291807 counting only the distinct ones).

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

Adding to 22220020201212 its reverse (21210202002222), we get a palindrome (43430222203434).

The spelling of 22220020201212 in words is "twenty-two trillion, two hundred twenty billion, twenty million, two hundred one thousand, two hundred twelve".