212111333200031 has 16 divisors (see below), whose sum is σ = 225034890178560. Its totient is φ = 199363780828800.

The previous prime is 212111333200009. The next prime is 212111333200043. The reversal of 212111333200031 is 130002333111212.

It is a cyclic number.

It is not a de Polignac number, because 212111333200031 - 2⁴² = 207713286688927 is a prime.

It is a super-2 number, since 2×212111333200031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111333200231) 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, 423474920 + ... + 423975506.

It is an arithmetic number, because the mean of its divisors is an integer number (14064680636160).

Almost surely, 2^{212111333200031} is an apocalyptic number.

212111333200031 is a deficient number, since it is larger than the sum of its proper divisors (12923556978529).

212111333200031 is a wasteful number, since it uses less digits than its factorization.

212111333200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676334.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 212111333200031 its reverse (130002333111212), we get a palindrome (342113666311243).

The spelling of 212111333200031 in words is "two hundred twelve trillion, one hundred eleven billion, three hundred thirty-three million, two hundred thousand, thirty-one".