202221200011123 has 4 divisors (see below), whose sum is σ = 212864421064360. Its totient is φ = 191577978957888.

The previous prime is 202221200011121. The next prime is 202221200011151. The reversal of 202221200011123 is 321110002122202.

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

It is a cyclic number.

It is not a de Polignac number, because 202221200011123 - 2¹ = 202221200011121 is a prime.

It is a super-2 number, since 2×202221200011123² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 10643221053217 = 202221200011123 / (2 + 0 + 2 + 2 + 2 + 1 + 2 + 0 + 0 + 0 + 1 + 1 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202221200011123.

It is not an unprimeable number, because it can be changed into a prime (202221200011121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5321610526590 + ... + 5321610526627.

It is an arithmetic number, because the mean of its divisors is an integer number (53216105266090).

Almost surely, 2^{202221200011123} is an apocalyptic number.

202221200011123 is a deficient number, since it is larger than the sum of its proper divisors (10643221053237).

202221200011123 is a wasteful number, since it uses less digits than its factorization.

202221200011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10643221053236.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 202221200011123 its reverse (321110002122202), we get a palindrome (523331202133325).

The spelling of 202221200011123 in words is "two hundred two trillion, two hundred twenty-one billion, two hundred million, eleven thousand, one hundred twenty-three".