229121202121427 has 16 divisors (see below), whose sum is σ = 285684915782400. Its totient is φ = 178518930942240.

The previous prime is 229121202121423. The next prime is 229121202121429. The reversal of 229121202121427 is 724121202121922.

It is not a de Polignac number, because 229121202121427 - 2² = 229121202121423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229121202121423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141445352 + ... + 143056037.

It is an arithmetic number, because the mean of its divisors is an integer number (17855307236400).

Almost surely, 2^{229121202121427} is an apocalyptic number.

229121202121427 is a deficient number, since it is larger than the sum of its proper divisors (56563713660973).

229121202121427 is a wasteful number, since it uses less digits than its factorization.

229121202121427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284511866.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 229121202121427 in words is "two hundred twenty-nine trillion, one hundred twenty-one billion, two hundred two million, one hundred twenty-one thousand, four hundred twenty-seven".