1021000000222 has 8 divisors (see below), whose sum is σ = 1534544733456. Its totient is φ = 509485089072.

The previous prime is 1021000000213. The next prime is 1021000000291. The reversal of 1021000000222 is 2220000001201.

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 = 1021000000199 and 1021000000208.

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, 507454263 + ... + 507456274.

It is an arithmetic number, because the mean of its divisors is an integer number (191818091682).

Almost surely, 2^{1021000000222} is an apocalyptic number.

1021000000222 is a deficient number, since it is larger than the sum of its proper divisors (513544733234).

1021000000222 is a wasteful number, since it uses less digits than its factorization.

1021000000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014911042.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1021000000222 its reverse (2220000001201), we get a palindrome (3241000001423).

The spelling of 1021000000222 in words is "one trillion, twenty-one billion, two hundred twenty-two", and thus it is an aban number.