221242113431002 has 32 divisors (see below), whose sum is σ = 347554709259264. Its totient is φ = 105495825187200.

The previous prime is 221242113430991. The next prime is 221242113431011. The reversal of 221242113431002 is 200134311242122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2194453 + ... + 21149464.

It is an arithmetic number, because the mean of its divisors is an integer number (10861084664352).

Almost surely, 2^{221242113431002} is an apocalyptic number.

221242113431002 is a deficient number, since it is larger than the sum of its proper divisors (126312595828262).

221242113431002 is a wasteful number, since it uses less digits than its factorization.

221242113431002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23346174.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 221242113431002 its reverse (200134311242122), we get a palindrome (421376424673124).

The spelling of 221242113431002 in words is "two hundred twenty-one trillion, two hundred forty-two billion, one hundred thirteen million, four hundred thirty-one thousand, two".