1020021222 has 16 divisors (see below), whose sum is σ = 2225500992. Its totient is φ = 309097320.

The previous prime is 1020021209. The next prime is 1020021229. The reversal of 1020021222 is 2221200201.

It is a junction number, because it is equal to n+sod(n) for n = 1020021198 and 1020021207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020021229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7727368 + ... + 7727499.

It is an arithmetic number, because the mean of its divisors is an integer number (139093812).

Almost surely, 2^1020021222 is an apocalyptic number.

1020021222 is an abundant number, since it is smaller than the sum of its proper divisors (1205479770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020021222 is a wasteful number, since it uses less digits than its factorization.

1020021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15454883.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1020021222 is about 31937.7710869121. The cubic root of 1020021222 is about 1006.6296907363.

Adding to 1020021222 its reverse (2221200201), we get a palindrome (3241221423).

The spelling of 1020021222 in words is "one billion, twenty million, twenty-one thousand, two hundred twenty-two".