221021101012002 has 16 divisors (see below), whose sum is σ = 442047758994912. Its totient is φ = 73672774175520.

The previous prime is 221021101011937. The next prime is 221021101012013. The reversal of 221021101012002 is 200210101120122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231023308 + ... + 231978039.

It is an arithmetic number, because the mean of its divisors is an integer number (27627984937182).

Almost surely, 2^{221021101012002} is an apocalyptic number.

221021101012002 is an abundant number, since it is smaller than the sum of its proper divisors (221026657982910).

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

221021101012002 is a wasteful number, since it uses less digits than its factorization.

221021101012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463080913.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221021101012002 its reverse (200210101120122), we get a palindrome (421231202132124).

The spelling of 221021101012002 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred one million, twelve thousand, two".