212122023033 has 4 divisors (see below), whose sum is σ = 282829364048. Its totient is φ = 141414682020.

The previous prime is 212122022971. The next prime is 212122023041. The reversal of 212122023033 is 330320221212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212122023033 - 2³⁶ = 143402546297 is a prime.

It is a super-2 number, since 2×212122023033² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212122023083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35353670503 + ... + 35353670508.

It is an arithmetic number, because the mean of its divisors is an integer number (70707341012).

Almost surely, 2^212122023033 is an apocalyptic number.

It is an amenable number.

212122023033 is a deficient number, since it is larger than the sum of its proper divisors (70707341015).

212122023033 is an equidigital number, since it uses as much as digits as its factorization.

212122023033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70707341014.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 212122023033 its reverse (330320221212), we get a palindrome (542442244245).

The spelling of 212122023033 in words is "two hundred twelve billion, one hundred twenty-two million, twenty-three thousand, thirty-three".