202220020121011 has 4 divisors (see below), whose sum is σ = 202238763298000. Its totient is φ = 202201276944024.

The previous prime is 202220020120997. The next prime is 202220020121047. The reversal of 202220020121011 is 110121020022202.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202220020121011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202220020121081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9371572311 + ... + 9371593888.

It is an arithmetic number, because the mean of its divisors is an integer number (50559690824500).

Almost surely, 2^{202220020121011} is an apocalyptic number.

202220020121011 is a deficient number, since it is larger than the sum of its proper divisors (18743176989).

202220020121011 is a wasteful number, since it uses less digits than its factorization.

202220020121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18743176988.

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

Adding to 202220020121011 its reverse (110121020022202), we get a palindrome (312341040143213).

The spelling of 202220020121011 in words is "two hundred two trillion, two hundred twenty billion, twenty million, one hundred twenty-one thousand, eleven".