213210212123011 has 16 divisors (see below), whose sum is σ = 219283555827168. Its totient is φ = 207178616012800.

The previous prime is 213210212122981. The next prime is 213210212123023. The reversal of 213210212123011 is 110321212012312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213210212123011 - 2³⁵ = 213175852384643 is a prime.

It is a super-3 number, since 3×213210212123011³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213210212423011) 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, 98748996 + ... + 100885006.

It is an arithmetic number, because the mean of its divisors is an integer number (13705222239198).

Almost surely, 2^{213210212123011} is an apocalyptic number.

213210212123011 is a deficient number, since it is larger than the sum of its proper divisors (6073343704157).

213210212123011 is a wasteful number, since it uses less digits than its factorization.

213210212123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145782.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 213210212123011 its reverse (110321212012312), we get a palindrome (323531424135323).

The spelling of 213210212123011 in words is "two hundred thirteen trillion, two hundred ten billion, two hundred twelve million, one hundred twenty-three thousand, eleven".