212100155241 has 8 divisors (see below), whose sum is σ = 304554069120. Its totient is φ = 130523172432.

The previous prime is 212100155233. The next prime is 212100155269. The reversal of 212100155241 is 142551001212.

It is a happy number.

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

It is not a de Polignac number, because 212100155241 - 2³ = 212100155233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212100153241) 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, 2719232721 + ... + 2719232798.

It is an arithmetic number, because the mean of its divisors is an integer number (38069258640).

Almost surely, 2^212100155241 is an apocalyptic number.

It is an amenable number.

212100155241 is a deficient number, since it is larger than the sum of its proper divisors (92453913879).

212100155241 is a wasteful number, since it uses less digits than its factorization.

212100155241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5438465535.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 212100155241 its reverse (142551001212), we get a palindrome (354651156453).

The spelling of 212100155241 in words is "two hundred twelve billion, one hundred million, one hundred fifty-five thousand, two hundred forty-one".