221111101201202 has 16 divisors (see below), whose sum is σ = 339877834070040. Its totient is φ = 107842604917632.

The previous prime is 221111101201187. The next prime is 221111101201223. The reversal of 221111101201202 is 202102101111122.

It can be written as a sum of positive squares in 4 ways, for example, as 209658555527281 + 11452545673921 = 14479591^2 + 3384161^2 .

It is a super-3 number, since 3×221111101201202³ (a number of 44 digits) contains 333 as substring.

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, 6028749827 + ... + 6028786502.

Almost surely, 2^{221111101201202} is an apocalyptic number.

221111101201202 is a deficient number, since it is larger than the sum of its proper divisors (118766732868838).

221111101201202 is a wasteful number, since it uses less digits than its factorization.

221111101201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12057536557.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221111101201202 its reverse (202102101111122), we get a palindrome (423213202312324).

The spelling of 221111101201202 in words is "two hundred twenty-one trillion, one hundred eleven billion, one hundred one million, two hundred one thousand, two hundred two".