221001020022003 has 32 divisors (see below), whose sum is σ = 336248792732160. Its totient is φ = 127989436953600.

The previous prime is 221001020021959. The next prime is 221001020022043. The reversal of 221001020022003 is 300220020100122.

It is a happy number.

It is not a de Polignac number, because 221001020022003 - 2²⁵ = 221000986467571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221001020022043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 987460926 + ... + 987684707.

It is an arithmetic number, because the mean of its divisors is an integer number (10507774772880).

Almost surely, 2^{221001020022003} is an apocalyptic number.

221001020022003 is a deficient number, since it is larger than the sum of its proper divisors (115247772710157).

221001020022003 is a wasteful number, since it uses less digits than its factorization.

221001020022003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975145819.

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

Adding to 221001020022003 its reverse (300220020100122), we get a palindrome (521221040122125).

The spelling of 221001020022003 in words is "two hundred twenty-one trillion, one billion, twenty million, twenty-two thousand, three".