10221220023 has 24 divisors (see below), whose sum is σ = 15967405440. Its totient is φ = 5798666160.

The previous prime is 10221219997. The next prime is 10221220073. The reversal of 10221220023 is 32002212201.

It is a happy number.

It is not a de Polignac number, because 10221220023 - 2⁶ = 10221219959 is a prime.

It is a super-2 number, since 2×10221220023² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10221219984 and 10221220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221220073) 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, 229683 + ... + 270548.

It is an arithmetic number, because the mean of its divisors is an integer number (665308560).

Almost surely, 2^10221220023 is an apocalyptic number.

10221220023 is a deficient number, since it is larger than the sum of its proper divisors (5746185417).

10221220023 is a wasteful number, since it uses less digits than its factorization.

10221220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500387 (or 500380 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 10221220023 its reverse (32002212201), we get a palindrome (42223432224).

The spelling of 10221220023 in words is "ten billion, two hundred twenty-one million, two hundred twenty thousand, twenty-three".