221133313311010 has 32 divisors (see below), whose sum is σ = 407752350615792. Its totient is φ = 86295060510720.

The previous prime is 221133313310891. The next prime is 221133313311017. The reversal of 221133313311010 is 10113313331122.

It can be written as a sum of positive squares in 8 ways, for example, as 10469540934889 + 210663772376121 = 3235667^2 + 14514261^2 .

It is not an unprimeable number, because it can be changed into a prime (221133313311017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38948074 + ... + 44263066.

Almost surely, 2^{221133313311010} is an apocalyptic number.

221133313311010 is a deficient number, since it is larger than the sum of its proper divisors (186619037304782).

221133313311010 is a wasteful number, since it uses less digits than its factorization.

221133313311010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416518.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 221133313311010 its reverse (10113313331122), we get a palindrome (231246626642132).

The spelling of 221133313311010 in words is "two hundred twenty-one trillion, one hundred thirty-three billion, three hundred thirteen million, three hundred eleven thousand, ten".