200211001022121 has 64 divisors (see below), whose sum is σ = 281787013347840. Its totient is φ = 126276720629760.

The previous prime is 200211001022107. The next prime is 200211001022129. The reversal of 200211001022121 is 121220100112002.

It is not a de Polignac number, because 200211001022121 - 2⁶ = 200211001022057 is a prime.

It is a super-2 number, since 2×200211001022121² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200211001022121.

It is not an unprimeable number, because it can be changed into a prime (200211001022129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2646400531 + ... + 2646476183.

It is an arithmetic number, because the mean of its divisors is an integer number (4402922083560).

Almost surely, 2^{200211001022121} is an apocalyptic number.

It is an amenable number.

200211001022121 is a deficient number, since it is larger than the sum of its proper divisors (81576012325719).

200211001022121 is a wasteful number, since it uses less digits than its factorization.

200211001022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77666.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200211001022121 its reverse (121220100112002), we get a palindrome (321431101134123).

The spelling of 200211001022121 in words is "two hundred trillion, two hundred eleven billion, one million, twenty-two thousand, one hundred twenty-one".