1000021220223 has 8 divisors (see below), whose sum is σ = 1334298640128. Its totient is φ = 666212306904.

The previous prime is 1000021220189. The next prime is 1000021220227. The reversal of 1000021220223 is 3220221200001.

It is a happy number.

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

It is not a de Polignac number, because 1000021220223 - 2³⁴ = 982841351039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000021220227) 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, 117121665 + ... + 117130202.

It is an arithmetic number, because the mean of its divisors is an integer number (166787330016).

Almost surely, 2^{1000021220223} is an apocalyptic number.

1000021220223 is a deficient number, since it is larger than the sum of its proper divisors (334277419905).

1000021220223 is a wasteful number, since it uses less digits than its factorization.

1000021220223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234253293.

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

Adding to 1000021220223 its reverse (3220221200001), we get a palindrome (4220242420224).

The spelling of 1000021220223 in words is "one trillion, twenty-one million, two hundred twenty thousand, two hundred twenty-three".