222011440242021 has 24 divisors (see below), whose sum is σ = 320805779537880. Its totient is φ = 147951050265600.

The previous prime is 222011440241989. The next prime is 222011440242037. The reversal of 222011440242021 is 120242044110222.

222011440242021 is a `hidden beast` number, since 2 + 2 + 2 + 0 + 11 + 440 + 2 + 4 + 202 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 61815588319521 + 160195851922500 = 7862289^2 + 12656850^2 .

It is not a de Polignac number, because 222011440242021 - 2⁵ = 222011440241989 is a prime.

It is a super-2 number, since 2×222011440242021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011440242521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1467855961 + ... + 1468007201.

It is an arithmetic number, because the mean of its divisors is an integer number (13366907480745).

Almost surely, 2^{222011440242021} is an apocalyptic number.

It is an amenable number.

222011440242021 is a deficient number, since it is larger than the sum of its proper divisors (98794339295859).

222011440242021 is a wasteful number, since it uses less digits than its factorization.

222011440242021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212517 (or 212514 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 222011440242021 its reverse (120242044110222), we get a palindrome (342253484352243).

The spelling of 222011440242021 in words is "two hundred twenty-two trillion, eleven billion, four hundred forty million, two hundred forty-two thousand, twenty-one".