1222023202021 has 8 divisors (see below), whose sum is σ = 1263405135104. Its totient is φ = 1180763883360.

The previous prime is 1222023202003. The next prime is 1222023202061. The reversal of 1222023202021 is 1202023202221.

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 1222023202021 - 2¹¹ = 1222023199973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222023202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222023202061) 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, 30633336 + ... + 30673201.

It is an arithmetic number, because the mean of its divisors is an integer number (157925641888).

Almost surely, 2^{1222023202021} is an apocalyptic number.

It is an amenable number.

1222023202021 is a deficient number, since it is larger than the sum of its proper divisors (41381933083).

1222023202021 is an equidigital number, since it uses as much as digits as its factorization.

1222023202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61307211.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1222023202021 its reverse (1202023202221), we get a palindrome (2424046404242).

The spelling of 1222023202021 in words is "one trillion, two hundred twenty-two billion, twenty-three million, two hundred two thousand, twenty-one".