213122134610154 has 192 divisors, whose sum is σ = 609179715256320. Its totient is φ = 52168332528000.

The previous prime is 213122134610153. The next prime is 213122134610183. The reversal of 213122134610154 is 451016431221312.

213122134610154 is a `hidden beast` number, since 2 + 1 + 3 + 1 + 2 + 2 + 1 + 34 + 610 + 1 + 5 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (213122134610153) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16156177 + ... + 26215764.

It is an arithmetic number, because the mean of its divisors is an integer number (3172811016960).

Almost surely, 2^{213122134610154} is an apocalyptic number.

213122134610154 is an abundant number, since it is smaller than the sum of its proper divisors (396057580646166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213122134610154 is a wasteful number, since it uses less digits than its factorization.

213122134610154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42372177 (or 42372174 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 213122134610154 its reverse (451016431221312), we get a palindrome (664138565831466).

The spelling of 213122134610154 in words is "two hundred thirteen trillion, one hundred twenty-two billion, one hundred thirty-four million, six hundred ten thousand, one hundred fifty-four".