1002222031 has 4 divisors (see below), whose sum is σ = 1023545952. Its totient is φ = 980898112.

The previous prime is 1002222019. The next prime is 1002222041. The reversal of 1002222031 is 1302222001.

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 1002222031 - 2¹⁵ = 1002189263 is a prime.

It is a super-2 number, since 2×1002222031² = 2008897998843529922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002222041) 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, 10661890 + ... + 10661983.

It is an arithmetic number, because the mean of its divisors is an integer number (255886488).

Almost surely, 2^1002222031 is an apocalyptic number.

1002222031 is a deficient number, since it is larger than the sum of its proper divisors (21323921).

1002222031 is an equidigital number, since it uses as much as digits as its factorization.

1002222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21323920.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1002222031 is about 31657.8905014216. The cubic root of 1002222031 is about 1000.7401290738.

Adding to 1002222031 its reverse (1302222001), we get a palindrome (2304444032).

The spelling of 1002222031 in words is "one billion, two million, two hundred twenty-two thousand, thirty-one".