221110022211010 has 8 divisors (see below), whose sum is σ = 397998039979836. Its totient is φ = 88444008884400.

The previous prime is 221110022210989. The next prime is 221110022211017. The reversal of 221110022211010 is 10112220011122.

It can be written as a sum of positive squares in 2 ways, for example, as 177706789310241 + 43403232900769 = 13330671^2 + 6588113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221110022211017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11055501110541 + ... + 11055501110560.

Almost surely, 2^{221110022211010} is an apocalyptic number.

221110022211010 is a deficient number, since it is larger than the sum of its proper divisors (176888017768826).

221110022211010 is a wasteful number, since it uses less digits than its factorization.

221110022211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22111002221108.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221110022211010 its reverse (10112220011122), we get a palindrome (231222242222132).

The spelling of 221110022211010 in words is "two hundred twenty-one trillion, one hundred ten billion, twenty-two million, two hundred eleven thousand, ten".