1021000222 has 16 divisors (see below), whose sum is σ = 1743368832. Its totient is φ = 443912920.

The previous prime is 1021000219. The next prime is 1021000231. The reversal of 1021000222 is 2220001201.

It is a junction number, because it is equal to n+sod(n) for n = 1021000199 and 1021000208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008388 + ... + 1009399.

It is an arithmetic number, because the mean of its divisors is an integer number (108960552).

Almost surely, 2^1021000222 is an apocalyptic number.

1021000222 is a deficient number, since it is larger than the sum of its proper divisors (722368610).

1021000222 is a wasteful number, since it uses less digits than its factorization.

1021000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017823.

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

The square root of 1021000222 is about 31953.0940911831. The cubic root of 1021000222 is about 1006.9516367664.

Adding to 1021000222 its reverse (2220001201), we get a palindrome (3241001423).

The spelling of 1021000222 in words is "one billion, twenty-one million, two hundred twenty-two", and thus it is an aban number.