1021222013 has 8 divisors (see below), whose sum is σ = 1228537920. Its totient is φ = 829262880.

The previous prime is 1021222001. The next prime is 1021222021. The reversal of 1021222013 is 3102221201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1021222013 - 2²⁰ = 1020173437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021222313) 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, 3839048 + ... + 3839313.

It is an arithmetic number, because the mean of its divisors is an integer number (153567240).

Almost surely, 2^1021222013 is an apocalyptic number.

It is an amenable number.

1021222013 is a deficient number, since it is larger than the sum of its proper divisors (207315907).

1021222013 is an equidigital number, since it uses as much as digits as its factorization.

1021222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7678387.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1021222013 is about 31956.5644742985. The cubic root of 1021222013 is about 1007.0245445667.

Adding to 1021222013 its reverse (3102221201), we get a palindrome (4123443214).

The spelling of 1021222013 in words is "one billion, twenty-one million, two hundred twenty-two thousand, thirteen".