222121001101 has 4 divisors (see below), whose sum is σ = 222262751872. Its totient is φ = 221979250332.

The previous prime is 222121001087. The next prime is 222121001119. The reversal of 222121001101 is 101100121222.

222121001101 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222121001101 - 2⁷ = 222121000973 is a prime.

It is a super-2 number, since 2×222121001101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121001161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70873035 + ... + 70876168.

It is an arithmetic number, because the mean of its divisors is an integer number (55565687968).

Almost surely, 2^222121001101 is an apocalyptic number.

It is an amenable number.

222121001101 is a deficient number, since it is larger than the sum of its proper divisors (141750771).

222121001101 is a wasteful number, since it uses less digits than its factorization.

222121001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141750770.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 222121001101 its reverse (101100121222), we get a palindrome (323221122323).

The spelling of 222121001101 in words is "two hundred twenty-two billion, one hundred twenty-one million, one thousand, one hundred one".