212010231331331 has 16 divisors (see below), whose sum is σ = 217376728773120. Its totient is φ = 206679895674720.

The previous prime is 212010231331307. The next prime is 212010231331351. The reversal of 212010231331331 is 133133132010212.

It is a cyclic number.

It is not a de Polignac number, because 212010231331331 - 2¹⁰ = 212010231330307 is a prime.

It is a super-2 number, since 2×212010231331331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212010231331331.

It is not an unprimeable number, because it can be changed into a prime (212010231331351) 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, 35492396 + ... + 41033286.

It is an arithmetic number, because the mean of its divisors is an integer number (13586045548320).

Almost surely, 2^{212010231331331} is an apocalyptic number.

212010231331331 is a deficient number, since it is larger than the sum of its proper divisors (5366497441789).

212010231331331 is a wasteful number, since it uses less digits than its factorization.

212010231331331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5544154.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 212010231331331 its reverse (133133132010212), we get a palindrome (345143363341543).

The spelling of 212010231331331 in words is "two hundred twelve trillion, ten billion, two hundred thirty-one million, three hundred thirty-one thousand, three hundred thirty-one".