221012212021022 has 8 divisors (see below), whose sum is σ = 331518390691176. Its totient is φ = 110506081790632.

The previous prime is 221012212020983. The next prime is 221012212021033. The reversal of 221012212021022 is 220120212210122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221012212020985 and 221012212021003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3134828 + ... + 21256800.

It is an arithmetic number, because the mean of its divisors is an integer number (41439798836397).

Almost surely, 2^{221012212021022} is an apocalyptic number.

221012212021022 is a deficient number, since it is larger than the sum of its proper divisors (110506178670154).

221012212021022 is a wasteful number, since it uses less digits than its factorization.

221012212021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24219882.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221012212021022 its reverse (220120212210122), we get a palindrome (441132424231144).

The spelling of 221012212021022 in words is "two hundred twenty-one trillion, twelve billion, two hundred twelve million, twenty-one thousand, twenty-two".