202200111121 has 4 divisors (see below), whose sum is σ = 202318427700. Its totient is φ = 202081794544.

The previous prime is 202200111103. The next prime is 202200111131. The reversal of 202200111121 is 121111002202.

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 114014275600 + 88185835521 = 337660^2 + 296961^2 .

It is a cyclic number.

It is not a de Polignac number, because 202200111121 - 2³¹ = 200052627473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202200111101) 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, 59155726 + ... + 59159143.

It is an arithmetic number, because the mean of its divisors is an integer number (50579606925).

Almost surely, 2^202200111121 is an apocalyptic number.

It is an amenable number.

202200111121 is a deficient number, since it is larger than the sum of its proper divisors (118316579).

202200111121 is a wasteful number, since it uses less digits than its factorization.

202200111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118316578.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 202200111121 its reverse (121111002202), we get a palindrome (323311113323).

The spelling of 202200111121 in words is "two hundred two billion, two hundred million, one hundred eleven thousand, one hundred twenty-one".