1020221201223 has 24 divisors (see below), whose sum is σ = 1729692919968. Its totient is φ = 567227230272.

The previous prime is 1020221201201. The next prime is 1020221201227. The reversal of 1020221201223 is 3221021220201.

1020221201223 is a `hidden beast` number, since 1 + 0 + 20 + 221 + 201 + 223 = 666.

It is not a de Polignac number, because 1020221201223 - 2⁵ = 1020221201191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020221201196 and 1020221201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020221201227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218835336 + ... + 218839997.

It is an arithmetic number, because the mean of its divisors is an integer number (72070538332).

Almost surely, 2^{1020221201223} is an apocalyptic number.

1020221201223 is a deficient number, since it is larger than the sum of its proper divisors (709471718745).

1020221201223 is a wasteful number, since it uses less digits than its factorization.

1020221201223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437675383 (or 437675380 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1020221201223 its reverse (3221021220201), we get a palindrome (4241242421424).

The spelling of 1020221201223 in words is "one trillion, twenty billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-three".