213122011101 has 8 divisors (see below), whose sum is σ = 284453537664. Its totient is φ = 141935912640.

The previous prime is 213122011087. The next prime is 213122011127. The reversal of 213122011101 is 101110221312.

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

It is not a de Polignac number, because 213122011101 - 2¹⁹ = 213121486813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122012101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36353605 + ... + 36359466.

It is an arithmetic number, because the mean of its divisors is an integer number (35556692208).

Almost surely, 2^213122011101 is an apocalyptic number.

It is an amenable number.

213122011101 is a deficient number, since it is larger than the sum of its proper divisors (71331526563).

213122011101 is an equidigital number, since it uses as much as digits as its factorization.

213122011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72714051.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 213122011101 its reverse (101110221312), we get a palindrome (314232232413).

The spelling of 213122011101 in words is "two hundred thirteen billion, one hundred twenty-two million, eleven thousand, one hundred one".