212541154154 has 16 divisors (see below), whose sum is σ = 364453077888. Its totient is φ = 91064862672.

The previous prime is 212541154121. The next prime is 212541154171. The reversal of 212541154154 is 451451145212.

212541154154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212541154154² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962329 + ... + 2067804.

It is an arithmetic number, because the mean of its divisors is an integer number (22778317368).

Almost surely, 2^212541154154 is an apocalyptic number.

212541154154 is a deficient number, since it is larger than the sum of its proper divisors (151911923734).

212541154154 is a wasteful number, since it uses less digits than its factorization.

212541154154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033909.

The product of its digits is 32000, while the sum is 35.

Adding to 212541154154 its reverse (451451145212), we get a palindrome (663992299366).

The spelling of 212541154154 in words is "two hundred twelve billion, five hundred forty-one million, one hundred fifty-four thousand, one hundred fifty-four".