221012012222011 has 8 divisors (see below), whose sum is σ = 221400017883440. Its totient is φ = 220624316349408.

The previous prime is 221012012221961. The next prime is 221012012222033. The reversal of 221012012222011 is 110222210210122.

221012012222011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221012012222011 is a prime.

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 221012012222011.

It is not an unprimeable number, because it can be changed into a prime (221012012222081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76019076 + ... + 78872833.

It is an arithmetic number, because the mean of its divisors is an integer number (27675002235430).

Almost surely, 2^{221012012222011} is an apocalyptic number.

221012012222011 is a deficient number, since it is larger than the sum of its proper divisors (388005661429).

221012012222011 is a wasteful number, since it uses less digits than its factorization.

221012012222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154894413.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221012012222011 its reverse (110222210210122), we get a palindrome (331234222432133).

The spelling of 221012012222011 in words is "two hundred twenty-one trillion, twelve billion, twelve million, two hundred twenty-two thousand, eleven".