2221021202202 has 80 divisors (see below), whose sum is σ = 5434274970432. Its totient is φ = 672403006080.

The previous prime is 2221021202189. The next prime is 2221021202227. The reversal of 2221021202202 is 2022021201222.

2221021202202 is a `hidden beast` number, since 22 + 210 + 212 + 0 + 220 + 2 = 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 39 ways as a sum of consecutive naturals, for example, 1308018 + ... + 2480514.

Almost surely, 2^{2221021202202} is an apocalyptic number.

2221021202202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221021202202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2717137485216).

2221021202202 is an abundant number, since it is smaller than the sum of its proper divisors (3213253768230).

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

2221021202202 is a wasteful number, since it uses less digits than its factorization.

2221021202202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173585 (or 1173576 counting only the distinct ones).

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

Adding to 2221021202202 its reverse (2022021201222), we get a palindrome (4243042403424).

The spelling of 2221021202202 in words is "two trillion, two hundred twenty-one billion, twenty-one million, two hundred two thousand, two hundred two".