200022211200121 has 4 divisors (see below), whose sum is σ = 200765788193700. Its totient is φ = 199278634206544.

The previous prime is 200022211200103. The next prime is 200022211200173. The reversal of 200022211200121 is 121002112220002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69167166222400 + 130855044977721 = 8316680^2 + 11439189^2 .

It is a cyclic number.

It is not a de Polignac number, because 200022211200121 - 2⁵ = 200022211200089 is a prime.

It is a super-2 number, since 2×200022211200121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200022211200095 and 200022211200104.

It is not an unprimeable number, because it can be changed into a prime (200022211200221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371788496386 + ... + 371788496923.

It is an arithmetic number, because the mean of its divisors is an integer number (50191447048425).

Almost surely, 2^{200022211200121} is an apocalyptic number.

It is an amenable number.

200022211200121 is a deficient number, since it is larger than the sum of its proper divisors (743576993579).

200022211200121 is an equidigital number, since it uses as much as digits as its factorization.

200022211200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743576993578.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 200022211200121 its reverse (121002112220002), we get a palindrome (321024323420123).

The spelling of 200022211200121 in words is "two hundred trillion, twenty-two billion, two hundred eleven million, two hundred thousand, one hundred twenty-one".