1020222331 has 4 divisors (see below), whose sum is σ = 1027562200. Its totient is φ = 1012882464.

The previous prime is 1020222323. The next prime is 1020222341. The reversal of 1020222331 is 1332220201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020222331 - 2³ = 1020222323 is a prime.

It is a super-2 number, since 2×1020222331² = 2081707209342147122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020222341) 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, 3669726 + ... + 3670003.

It is an arithmetic number, because the mean of its divisors is an integer number (256890550).

Almost surely, 2^1020222331 is an apocalyptic number.

1020222331 is a deficient number, since it is larger than the sum of its proper divisors (7339869).

1020222331 is an equidigital number, since it uses as much as digits as its factorization.

1020222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339868.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1020222331 is about 31940.9193825100. The cubic root of 1020222331 is about 1006.6958426237.

Adding to 1020222331 its reverse (1332220201), we get a palindrome (2352442532).

The spelling of 1020222331 in words is "one billion, twenty million, two hundred twenty-two thousand, three hundred thirty-one".