2202020221212 has 108 divisors (see below), whose sum is σ = 6481385184456. Its totient is φ = 628527049920.

The previous prime is 2202020221201. The next prime is 2202020221259. The reversal of 2202020221212 is 2121220202022.

2202020221212 is a `hidden beast` number, since 220 + 20 + 202 + 212 + 12 = 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1170787 + ... + 2403077.

It is an arithmetic number, because the mean of its divisors is an integer number (60012825782).

Almost surely, 2^{2202020221212} 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 2202020221212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3240692592228).

2202020221212 is an abundant number, since it is smaller than the sum of its proper divisors (4279364963244).

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

2202020221212 is a wasteful number, since it uses less digits than its factorization.

2202020221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233328 (or 1233316 counting only the distinct ones).

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

Adding to 2202020221212 its reverse (2121220202022), we get a palindrome (4323240423234).

The spelling of 2202020221212 in words is "two trillion, two hundred two billion, twenty million, two hundred twenty-one thousand, two hundred twelve".