1020322221 has 8 divisors (see below), whose sum is σ = 1361977344. Its totient is φ = 679440960.

The previous prime is 1020322217. The next prime is 1020322253. The reversal of 1020322221 is 1222230201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020322221 - 2² = 1020322217 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1020322221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020321221) 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, 190381 + ... + 195666.

It is an arithmetic number, because the mean of its divisors is an integer number (170247168).

Almost surely, 2^1020322221 is an apocalyptic number.

It is an amenable number.

1020322221 is a deficient number, since it is larger than the sum of its proper divisors (341655123).

1020322221 is an equidigital number, since it uses as much as digits as its factorization.

1020322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386931.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1020322221 is about 31942.4830124397. The cubic root of 1020322221 is about 1006.7286967585.

Adding to 1020322221 its reverse (1222230201), we get a palindrome (2242552422).

The spelling of 1020322221 in words is "one billion, twenty million, three hundred twenty-two thousand, two hundred twenty-one".