1020221222 has 16 divisors (see below), whose sum is σ = 1581993600. Its totient is φ = 492937920.

The previous prime is 1020221179. The next prime is 1020221231. The reversal of 1020221222 is 2221220201.

It is a junction number, because it is equal to n+sod(n) for n = 1020221197 and 1020221206.

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, 32354 + ... + 55562.

It is an arithmetic number, because the mean of its divisors is an integer number (98874600).

Almost surely, 2^1020221222 is an apocalyptic number.

1020221222 is a deficient number, since it is larger than the sum of its proper divisors (561772378).

1020221222 is a wasteful number, since it uses less digits than its factorization.

1020221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23951.

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

The square root of 1020221222 is about 31940.9020223287. The cubic root of 1020221222 is about 1006.6954778581.

Adding to 1020221222 its reverse (2221220201), we get a palindrome (3241441423).

The spelling of 1020221222 in words is "one billion, twenty million, two hundred twenty-one thousand, two hundred twenty-two".