1021021121222 has 8 divisors (see below), whose sum is σ = 1531561776672. Its totient is φ = 510500529000.

The previous prime is 1021021121189. The next prime is 1021021121273. The reversal of 1021021121222 is 2221211201201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1021021121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4887929 + ... + 5092532.

It is an arithmetic number, because the mean of its divisors is an integer number (191445222084).

Almost surely, 2^{1021021121222} is an apocalyptic number.

1021021121222 is a deficient number, since it is larger than the sum of its proper divisors (510540655450).

1021021121222 is an equidigital number, since it uses as much as digits as its factorization.

1021021121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10031614.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1021021121222 its reverse (2221211201201), we get a palindrome (3242232322423).

The spelling of 1021021121222 in words is "one trillion, twenty-one billion, twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".