221222101002 has 32 divisors (see below), whose sum is σ = 505787497344. Its totient is φ = 63189192000.

The previous prime is 221222100977. The next prime is 221222101031. The reversal of 221222101002 is 200101222122.

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, 556149 + ... + 867032.

It is an arithmetic number, because the mean of its divisors is an integer number (15805859292).

Almost surely, 2^221222101002 is an apocalyptic number.

221222101002 is an abundant number, since it is smaller than the sum of its proper divisors (284565396342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221222101002 is a wasteful number, since it uses less digits than its factorization.

221222101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426894.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221222101002 its reverse (200101222122), we get a palindrome (421323323124).

The spelling of 221222101002 in words is "two hundred twenty-one billion, two hundred twenty-two million, one hundred one thousand, two".