212051233451 has 8 divisors (see below), whose sum is σ = 213300555600. Its totient is φ = 210804723360.

The previous prime is 212051233411. The next prime is 212051233489. The reversal of 212051233451 is 154332150212.

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 212051233451 - 2¹⁴ = 212051217067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212051233411) 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, 551660 + ... + 853481.

It is an arithmetic number, because the mean of its divisors is an integer number (26662569450).

Almost surely, 2^212051233451 is an apocalyptic number.

212051233451 is a deficient number, since it is larger than the sum of its proper divisors (1249322149).

212051233451 is a wasteful number, since it uses less digits than its factorization.

212051233451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406029.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 212051233451 its reverse (154332150212), we get a palindrome (366383383663).

The spelling of 212051233451 in words is "two hundred twelve billion, fifty-one million, two hundred thirty-three thousand, four hundred fifty-one".