211212333030 has 32 divisors (see below), whose sum is σ = 508186478304. Its totient is φ = 56181413376.

The previous prime is 211212332939. The next prime is 211212333037. The reversal of 211212333030 is 30333212112.

It is a super-2 number, since 2×211212333030² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211212332988 and 211212333006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212333037) 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, 8855107 + ... + 8878926.

It is an arithmetic number, because the mean of its divisors is an integer number (15880827447).

Almost surely, 2^211212333030 is an apocalyptic number.

211212333030 is an abundant number, since it is smaller than the sum of its proper divisors (296974145274).

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

211212333030 is a wasteful number, since it uses less digits than its factorization.

211212333030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17734440.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 211212333030 its reverse (30333212112), we get a palindrome (241545545142).

The spelling of 211212333030 in words is "two hundred eleven billion, two hundred twelve million, three hundred thirty-three thousand, thirty".