211144421202 has 32 divisors (see below), whose sum is σ = 496115565120. Its totient is φ = 59061376320.

The previous prime is 211144421153. The next prime is 211144421233. The reversal of 211144421202 is 202124441112.

It is a happy number.

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, 123043677 + ... + 123045392.

It is an arithmetic number, because the mean of its divisors is an integer number (15503611410).

Almost surely, 2^211144421202 is an apocalyptic number.

211144421202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211144421202 is an abundant number, since it is smaller than the sum of its proper divisors (284971143918).

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

211144421202 is a wasteful number, since it uses less digits than its factorization.

211144421202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246089098.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 211144421202 its reverse (202124441112), we get a palindrome (413268862314).

The spelling of 211144421202 in words is "two hundred eleven billion, one hundred forty-four million, four hundred twenty-one thousand, two hundred two".