1012213321 has 8 divisors (see below), whose sum is σ = 1175779904. Its totient is φ = 853387920.

The previous prime is 1012213309. The next prime is 1012213357. The reversal of 1012213321 is 1233122101.

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

It is not a de Polignac number, because 1012213321 - 2⁷ = 1012213193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012213295 and 1012213304.

It is not an unprimeable number, because it can be changed into a prime (1012213021) 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, 1184835 + ... + 1185688.

It is an arithmetic number, because the mean of its divisors is an integer number (146972488).

Almost surely, 2^1012213321 is an apocalyptic number.

It is an amenable number.

1012213321 is a deficient number, since it is larger than the sum of its proper divisors (163566583).

1012213321 is an equidigital number, since it uses as much as digits as its factorization.

1012213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370591.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1012213321 is about 31815.3001085955. The cubic root of 1012213321 is about 1004.0546446372.

Adding to 1012213321 its reverse (1233122101), we get a palindrome (2245335422).

The spelling of 1012213321 in words is "one billion, twelve million, two hundred thirteen thousand, three hundred twenty-one".