210221011220022 has 24 divisors (see below), whose sum is σ = 496886026520520. Its totient is φ = 63703336733280.

The previous prime is 210221011220009. The next prime is 210221011220083. The reversal of 210221011220022 is 220022110122012.

It is a happy number.

210221011220022 is a `hidden beast` number, since 210 + 2 + 210 + 1 + 1 + 220 + 0 + 22 = 666.

It is a super-2 number, since 2×210221011220022² (a number of 29 digits) contains 22 as substring.

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 = 210221011219977 and 210221011220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530861139247 + ... + 530861139642.

It is an arithmetic number, because the mean of its divisors is an integer number (20703584438355).

Almost surely, 2^{210221011220022} is an apocalyptic number.

210221011220022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

210221011220022 is an abundant number, since it is smaller than the sum of its proper divisors (286665015300498).

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

210221011220022 is a wasteful number, since it uses less digits than its factorization.

210221011220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061722278908 (or 1061722278905 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210221011220022 its reverse (220022110122012), we get a palindrome (430243121342034).

The spelling of 210221011220022 in words is "two hundred ten trillion, two hundred twenty-one billion, eleven million, two hundred twenty thousand, twenty-two".