212021033331 has 8 divisors (see below), whose sum is σ = 294985785600. Its totient is φ = 135201818312.

The previous prime is 212021033321. The next prime is 212021033333. The reversal of 212021033331 is 133330120212.

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

It is a cyclic number.

It is not a de Polignac number, because 212021033331 - 2⁵ = 212021033299 is a prime.

It is a super-2 number, since 2×212021033331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212021033298 and 212021033307.

It is not an unprimeable number, because it can be changed into a prime (212021033333) 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, 1536384231 + ... + 1536384368.

It is an arithmetic number, because the mean of its divisors is an integer number (36873223200).

Almost surely, 2^212021033331 is an apocalyptic number.

212021033331 is a deficient number, since it is larger than the sum of its proper divisors (82964752269).

212021033331 is a wasteful number, since it uses less digits than its factorization.

212021033331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072768625.

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

Adding to 212021033331 its reverse (133330120212), we get a palindrome (345351153543).

The spelling of 212021033331 in words is "two hundred twelve billion, twenty-one million, thirty-three thousand, three hundred thirty-one".