222021010102221 has 24 divisors (see below), whose sum is σ = 349958638429920. Its totient is φ = 134516899562400.

The previous prime is 222021010102187. The next prime is 222021010102267. The reversal of 222021010102221 is 122201010120222.

It is a happy number.

222021010102221 is a `hidden beast` number, since 2 + 220 + 210 + 1 + 0 + 10 + 2 + 221 = 666.

It is not a de Polignac number, because 222021010102221 - 2¹⁹ = 222021009577933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222021010102194 and 222021010102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021010102121) 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, 343745550 + ... + 344390831.

It is an arithmetic number, because the mean of its divisors is an integer number (14581609934580).

Almost surely, 2^{222021010102221} is an apocalyptic number.

It is an amenable number.

222021010102221 is a deficient number, since it is larger than the sum of its proper divisors (127937628327699).

222021010102221 is a wasteful number, since it uses less digits than its factorization.

222021010102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688139657 (or 688139654 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222021010102221 its reverse (122201010120222), we get a palindrome (344222020222443).

The spelling of 222021010102221 in words is "two hundred twenty-two trillion, twenty-one billion, ten million, one hundred two thousand, two hundred twenty-one".