221012221101003 has 12 divisors (see below), whose sum is σ = 319240147287048. Its totient is φ = 147341355027840.

The previous prime is 221012221100987. The next prime is 221012221101107. The reversal of 221012221101003 is 300101122210122.

It is not a de Polignac number, because 221012221101003 - 2⁴ = 221012221100987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221012221100003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1363776 + ... + 21068562.

It is an arithmetic number, because the mean of its divisors is an integer number (26603345607254).

Almost surely, 2^{221012221101003} is an apocalyptic number.

221012221101003 is a deficient number, since it is larger than the sum of its proper divisors (98227926186045).

221012221101003 is a wasteful number, since it uses less digits than its factorization.

221012221101003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20951034 (or 20951031 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 221012221101003 its reverse (300101122210122), we get a palindrome (521113343311125).

The spelling of 221012221101003 in words is "two hundred twenty-one trillion, twelve billion, two hundred twenty-one million, one hundred one thousand, three".