1020001222 has 8 divisors (see below), whose sum is σ = 1545150672. Its totient is φ = 504951000.

The previous prime is 1020001201. The next prime is 1020001223. The reversal of 1020001222 is 2221000201.

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 = 1020001199 and 1020001208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020001223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524554 + ... + 2524957.

It is an arithmetic number, because the mean of its divisors is an integer number (193143834).

Almost surely, 2^1020001222 is an apocalyptic number.

1020001222 is a deficient number, since it is larger than the sum of its proper divisors (525149450).

1020001222 is a wasteful number, since it uses less digits than its factorization.

1020001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049614.

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

The square root of 1020001222 is about 31937.4579764890. The cubic root of 1020001222 is about 1006.6231115511.

Adding to 1020001222 its reverse (2221000201), we get a palindrome (3241001423).

The spelling of 1020001222 in words is "one billion, twenty million, one thousand, two hundred twenty-two".