2221021022022 has 96 divisors (see below), whose sum is σ = 5372872487424. Its totient is φ = 657304929600.

The previous prime is 2221021022009. The next prime is 2221021022063. The reversal of 2221021022022 is 2202201201222.

2221021022022 is a `hidden beast` number, since 2 + 2 + 210 + 210 + 220 + 22 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2221021021986 and 2221021022004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4090372 + ... + 4601432.

It is an arithmetic number, because the mean of its divisors is an integer number (55967421744).

Almost surely, 2^{2221021022022} is an apocalyptic number.

2221021022022 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 2221021022022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2686436243712).

2221021022022 is an abundant number, since it is smaller than the sum of its proper divisors (3151851465402).

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

2221021022022 is a wasteful number, since it uses less digits than its factorization.

2221021022022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511594 (or 511591 counting only the distinct ones).

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

Adding to 2221021022022 its reverse (2202201201222), we get a palindrome (4423222223244).

The spelling of 2221021022022 in words is "two trillion, two hundred twenty-one billion, twenty-one million, twenty-two thousand, twenty-two".