222121110313011 has 96 divisors (see below), whose sum is σ = 386730142498560. Its totient is φ = 112294783206144.

The previous prime is 222121110312977. The next prime is 222121110313079. The reversal of 222121110313011 is 110313011121222.

It is not a de Polignac number, because 222121110313011 - 2³¹ = 222118962829363 is a prime.

It is a super-2 number, since 2×222121110313011² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (222121110313111) 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 95 ways as a sum of consecutive naturals, for example, 18706141 + ... + 28180878.

It is an arithmetic number, because the mean of its divisors is an integer number (4028438984360).

Almost surely, 2^{222121110313011} is an apocalyptic number.

222121110313011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

222121110313011 is a deficient number, since it is larger than the sum of its proper divisors (164609032185549).

222121110313011 is a wasteful number, since it uses less digits than its factorization.

222121110313011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46887153 (or 46887146 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 222121110313011 its reverse (110313011121222), we get a palindrome (332434121434233).

The spelling of 222121110313011 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred ten million, three hundred thirteen thousand, eleven".