221021002022 has 8 divisors (see below), whose sum is σ = 331549275816. Its totient is φ = 110504576752.

The previous prime is 221021002003. The next prime is 221021002049. The reversal of 221021002022 is 220200120122.

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 = 221021001988 and 221021002006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915348 + ... + 2990199.

It is an arithmetic number, because the mean of its divisors is an integer number (41443659477).

Almost surely, 2^221021002022 is an apocalyptic number.

221021002022 is a deficient number, since it is larger than the sum of its proper divisors (110528273794).

221021002022 is a wasteful number, since it uses less digits than its factorization.

221021002022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5924262.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221021002022 its reverse (220200120122), we get a palindrome (441221122144).

The spelling of 221021002022 in words is "two hundred twenty-one billion, twenty-one million, two thousand, twenty-two".