221202023011 has 2 divisors, whose sum is σ = 221202023012. Its totient is φ = 221202023010.

The previous prime is 221202022997. The next prime is 221202023047. The reversal of 221202023011 is 110320202122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221202023011 is a prime.

It is a super-2 number, since 2×221202023011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221202023311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110601011505 + 110601011506.

It is an arithmetic number, because the mean of its divisors is an integer number (110601011506).

Almost surely, 2^221202023011 is an apocalyptic number.

221202023011 is a deficient number, since it is larger than the sum of its proper divisors (1).

221202023011 is an equidigital number, since it uses as much as digits as its factorization.

221202023011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221202023011 its reverse (110320202122), we get a palindrome (331522225133).

The spelling of 221202023011 in words is "two hundred twenty-one billion, two hundred two million, twenty-three thousand, eleven".