221200102022011 has 4 divisors (see below), whose sum is σ = 252800116596592. Its totient is φ = 189600087447432.

The previous prime is 221200102021993. The next prime is 221200102022027. The reversal of 221200102022011 is 110220201002122.

It is a happy number.

221200102022011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221200102022011 - 2¹⁹ = 221200101497723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221200102025011) 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, 15800007287280 + ... + 15800007287293.

It is an arithmetic number, because the mean of its divisors is an integer number (63200029149148).

Almost surely, 2^{221200102022011} is an apocalyptic number.

221200102022011 is a deficient number, since it is larger than the sum of its proper divisors (31600014574581).

221200102022011 is an equidigital number, since it uses as much as digits as its factorization.

221200102022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31600014574580.

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

Adding to 221200102022011 its reverse (110220201002122), we get a palindrome (331420303024133).

The spelling of 221200102022011 in words is "two hundred twenty-one trillion, two hundred billion, one hundred two million, twenty-two thousand, eleven".