212144440034121 has 32 divisors (see below), whose sum is σ = 324415661030400. Its totient is φ = 120794930662464.

The previous prime is 212144440034099. The next prime is 212144440034123. The reversal of 212144440034121 is 121430044441212.

It is not a de Polignac number, because 212144440034121 - 2⁷ = 212144440033993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212144440034123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 379769806 + ... + 380328008.

It is an arithmetic number, because the mean of its divisors is an integer number (10137989407200).

Almost surely, 2^{212144440034121} is an apocalyptic number.

212144440034121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212144440034121 is a deficient number, since it is larger than the sum of its proper divisors (112271220996279).

212144440034121 is a wasteful number, since it uses less digits than its factorization.

212144440034121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622445.

The product of its (nonzero) digits is 24576, while the sum is 33.

Adding to 212144440034121 its reverse (121430044441212), we get a palindrome (333574484475333).

The spelling of 212144440034121 in words is "two hundred twelve trillion, one hundred forty-four billion, four hundred forty million, thirty-four thousand, one hundred twenty-one".