200222220120021 has 30 divisors (see below), whose sum is σ = 328759941694646. Its totient is φ = 121346800066800.

The previous prime is 200222220120011. The next prime is 200222220120029. The reversal of 200222220120021 is 120021022222002.

200222220120021 is a `hidden beast` number, since 2 + 0 + 0 + 222 + 220 + 1 + 200 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 191238862419396 + 8983357700625 = 13828914^2 + 2997225^2 .

It is a de Polignac number, because none of the positive numbers 2^k-200222220120021 is a prime.

It is a super-3 number, since 3×200222220120021³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200222220119976 and 200222220120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200222220120029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 10214367310 + ... + 10214386911.

Almost surely, 2^{200222220120021} is an apocalyptic number.

It is an amenable number.

200222220120021 is a deficient number, since it is larger than the sum of its proper divisors (128537721574625).

200222220120021 is a wasteful number, since it uses less digits than its factorization.

200222220120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20428754255 (or 20428754235 counting only the distinct ones).

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

Adding to 200222220120021 its reverse (120021022222002), we get a palindrome (320243242342023).

The spelling of 200222220120021 in words is "two hundred trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twenty thousand, twenty-one".