2242212021 has 72 divisors (see below), whose sum is σ = 4022740800. Its totient is φ = 1196415360.

The previous prime is 2242212001. The next prime is 2242212031. The reversal of 2242212021 is 1202122422.

It is not a de Polignac number, because 2242212021 - 2⁹ = 2242211509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2242211985 and 2242212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2242212001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 593025 + ... + 596793.

It is an arithmetic number, because the mean of its divisors is an integer number (55871400).

Almost surely, 2^2242212021 is an apocalyptic number.

2242212021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2242212021 is a deficient number, since it is larger than the sum of its proper divisors (1780528779).

2242212021 is a wasteful number, since it uses less digits than its factorization.

2242212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879 (or 3869 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2242212021 is about 47352.0012354283. The cubic root of 2242212021 is about 1308.8570768679.

Adding to 2242212021 its reverse (1202122422), we get a palindrome (3444334443).

It can be divided in two parts, 22422 and 12021, that added together give a palindrome (34443).

The spelling of 2242212021 in words is "two billion, two hundred forty-two million, two hundred twelve thousand, twenty-one".