221211200002 has 64 divisors (see below), whose sum is σ = 368993802240.
Its totient is φ = 98811187200.
The previous prime is 221211199987. The next prime is 221211200009. The reversal of 221211200002 is 200002112122.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (13).
It is not an unprimeable number, because it can be changed into a prime (221211200009) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85309618 + ... + 85312210.
It is an arithmetic number, because the mean of its divisors is an integer number (5765528160).
Almost surely, 2221211200002 is an apocalyptic number.
221211200002 is a deficient number, since it is larger than the sum of its proper divisors (147782602238).
221211200002 is a wasteful number, since it uses less digits than its factorization.
221211200002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3259.
The product of its (nonzero) digits is 32, while the sum is 13.
Adding to 221211200002 its reverse (200002112122), we get a palindrome (421213312124).
The spelling of 221211200002 in words is "two hundred twenty-one billion, two hundred eleven million, two hundred thousand, two".