212021123293 has 24 divisors (see below), whose sum is σ = 252060599232. Its totient is φ = 174691679232.

The previous prime is 212021123239. The next prime is 212021123323. The reversal of 212021123293 is 392321120212.

It is a de Polignac number, because none of the positive numbers 2^k-212021123293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021123893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1257021 + ... + 1415677.

It is an arithmetic number, because the mean of its divisors is an integer number (10502524968).

Almost surely, 2^212021123293 is an apocalyptic number.

It is an amenable number.

212021123293 is a deficient number, since it is larger than the sum of its proper divisors (40039475939).

212021123293 is a wasteful number, since it uses less digits than its factorization.

212021123293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158949 (or 158920 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 212021123293 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-three thousand, two hundred ninety-three".