212401454444 has 96 divisors (see below), whose sum is σ = 391184640000. Its totient is φ = 100828417536.

The previous prime is 212401454437. The next prime is 212401454453. The reversal of 212401454444 is 444454104212.

It is a super-2 number, since 2×212401454444² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 443426597 + ... + 443427075.

It is an arithmetic number, because the mean of its divisors is an integer number (4074840000).

Almost surely, 2^212401454444 is an apocalyptic number.

It is an amenable number.

212401454444 is a deficient number, since it is larger than the sum of its proper divisors (178783185556).

212401454444 is a wasteful number, since it uses less digits than its factorization.

212401454444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 35.

Adding to 212401454444 its reverse (444454104212), we get a palindrome (656855558656).

The spelling of 212401454444 in words is "two hundred twelve billion, four hundred one million, four hundred fifty-four thousand, four hundred forty-four".