221031003002 has 8 divisors (see below), whose sum is σ = 351049240116. Its totient is φ = 104014589632.

The previous prime is 221031002953. The next prime is 221031003013. The reversal of 221031003002 is 200300130122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 209708127721 + 11322875281 = 457939^2 + 106409^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3250455893 + ... + 3250455960.

Almost surely, 2^221031003002 is an apocalyptic number.

221031003002 is a deficient number, since it is larger than the sum of its proper divisors (130018237114).

221031003002 is a wasteful number, since it uses less digits than its factorization.

221031003002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500911872.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 221031003002 its reverse (200300130122), we get a palindrome (421331133124).

The spelling of 221031003002 in words is "two hundred twenty-one billion, thirty-one million, three thousand, two".