1211021002223 has 8 divisors (see below), whose sum is σ = 1216293032448. Its totient is φ = 1205749609344.

The previous prime is 1211021002211. The next prime is 1211021002249. The reversal of 1211021002223 is 3222001201121.

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 1211021002223 - 2²² = 1211016807919 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 (1211021002273) 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, 3870290 + ... + 4171472.

It is an arithmetic number, because the mean of its divisors is an integer number (152036629056).

Almost surely, 2^{1211021002223} is an apocalyptic number.

1211021002223 is a deficient number, since it is larger than the sum of its proper divisors (5272030225).

1211021002223 is a wasteful number, since it uses less digits than its factorization.

1211021002223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318673.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1211021002223 its reverse (3222001201121), we get a palindrome (4433022203344).

The spelling of 1211021002223 in words is "one trillion, two hundred eleven billion, twenty-one million, two thousand, two hundred twenty-three".