221211234422202 has 32 divisors (see below), whose sum is σ = 442652132966400. Its totient is φ = 73698805567728.

The previous prime is 221211234422147. The next prime is 221211234422237. The reversal of 221211234422202 is 202224432112122.

It is a self number, because there is not a number n which added to its sum of digits gives 221211234422202.

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, 187043199 + ... + 188222157.

It is an arithmetic number, because the mean of its divisors is an integer number (13832879155200).

Almost surely, 2^{221211234422202} is an apocalyptic number.

221211234422202 is an abundant number, since it is smaller than the sum of its proper divisors (221440898544198).

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

221211234422202 is a wasteful number, since it uses less digits than its factorization.

221211234422202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195170.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 221211234422202 its reverse (202224432112122), we get a palindrome (423435666534324).

The spelling of 221211234422202 in words is "two hundred twenty-one trillion, two hundred eleven billion, two hundred thirty-four million, four hundred twenty-two thousand, two hundred two".