212052051204454 has 8 divisors (see below), whose sum is σ = 319397902852248. Its totient is φ = 105586083587040.

The previous prime is 212052051204421. The next prime is 212052051204457. The reversal of 212052051204454 is 454402150250212.

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

It is a super-2 number, since 2×212052051204454² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212052051204457) 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, 219971006992 + ... + 219971007955.

It is an arithmetic number, because the mean of its divisors is an integer number (39924737856531).

Almost surely, 2^{212052051204454} is an apocalyptic number.

212052051204454 is a deficient number, since it is larger than the sum of its proper divisors (107345851647794).

212052051204454 is a wasteful number, since it uses less digits than its factorization.

212052051204454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439942015190.

The product of its (nonzero) digits is 128000, while the sum is 37.

The spelling of 212052051204454 in words is "two hundred twelve trillion, fifty-two billion, fifty-one million, two hundred four thousand, four hundred fifty-four".