212533406121 has 16 divisors (see below), whose sum is σ = 284932772928. Its totient is φ = 140913427200.

The previous prime is 212533406119. The next prime is 212533406123. The reversal of 212533406121 is 121604335212.

It is an interprime number because it is at equal distance from previous prime (212533406119) and next prime (212533406123).

It is not a de Polignac number, because 212533406121 - 2¹ = 212533406119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212533406123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197250 + ... + 681156.

It is an arithmetic number, because the mean of its divisors is an integer number (17808298308).

Almost surely, 2^212533406121 is an apocalyptic number.

It is an amenable number.

212533406121 is a deficient number, since it is larger than the sum of its proper divisors (72399366807).

212533406121 is a wasteful number, since it uses less digits than its factorization.

212533406121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484712.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 212533406121 in words is "two hundred twelve billion, five hundred thirty-three million, four hundred six thousand, one hundred twenty-one".