2022221421 has 48 divisors (see below), whose sum is σ = 3309958080. Its totient is φ = 1178876160.

The previous prime is 2022221353. The next prime is 2022221437. The reversal of 2022221421 is 1241222202.

2022221421 is a `hidden beast` number, since 2 + 0 + 22 + 221 + 421 = 666.

It is not a de Polignac number, because 2022221421 - 2⁹ = 2022220909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2022221394 and 2022221403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022221491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 322906 + ... + 329108.

It is an arithmetic number, because the mean of its divisors is an integer number (68957460).

Almost surely, 2^2022221421 is an apocalyptic number.

It is an amenable number.

2022221421 is a deficient number, since it is larger than the sum of its proper divisors (1287736659).

2022221421 is a wasteful number, since it uses less digits than its factorization.

2022221421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6346 (or 6343 counting only the distinct ones).

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

The square root of 2022221421 is about 44969.1163021912. The cubic root of 2022221421 is about 1264.5700801753.

Adding to 2022221421 its reverse (1241222202), we get a palindrome (3263443623).

The spelling of 2022221421 in words is "two billion, twenty-two million, two hundred twenty-one thousand, four hundred twenty-one".