200211122220021 has 24 divisors (see below), whose sum is σ = 318547145931456. Its totient is φ = 120162015095040.

The previous prime is 200211122219897. The next prime is 200211122220047. The reversal of 200211122220021 is 120022221112002.

It is a happy number.

200211122220021 is a `hidden beast` number, since 200 + 21 + 1 + 1 + 222 + 200 + 21 = 666.

It is not a de Polignac number, because 200211122220021 - 2⁷ = 200211122219893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200211122219976 and 200211122220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200211122220091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9817147900 + ... + 9817168293.

It is an arithmetic number, because the mean of its divisors is an integer number (13272797747144).

Almost surely, 2^{200211122220021} is an apocalyptic number.

It is an amenable number.

200211122220021 is a deficient number, since it is larger than the sum of its proper divisors (118336023711435).

200211122220021 is a wasteful number, since it uses less digits than its factorization.

200211122220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19634316313 (or 19634316310 counting only the distinct ones).

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

Adding to 200211122220021 its reverse (120022221112002), we get a palindrome (320233343332023).

The spelling of 200211122220021 in words is "two hundred trillion, two hundred eleven billion, one hundred twenty-two million, two hundred twenty thousand, twenty-one".