212423420051 has 8 divisors (see below), whose sum is σ = 219754663200. Its totient is φ = 205092596800.

The previous prime is 212423420017. The next prime is 212423420071. The reversal of 212423420051 is 150024324212.

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 212423420051 - 2¹⁴ = 212423403667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212423420051.

It is not an unprimeable number, because it can be changed into a prime (212423420071) 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, 1198970 + ... + 1364688.

It is an arithmetic number, because the mean of its divisors is an integer number (27469332900).

Almost surely, 2^212423420051 is an apocalyptic number.

212423420051 is a deficient number, since it is larger than the sum of its proper divisors (7331243149).

212423420051 is a wasteful number, since it uses less digits than its factorization.

212423420051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209949.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 212423420051 its reverse (150024324212), we get a palindrome (362447744263).

The spelling of 212423420051 in words is "two hundred twelve billion, four hundred twenty-three million, four hundred twenty thousand, fifty-one".