12227127210155 has 32 divisors (see below), whose sum is σ = 17638560656640. Its totient is φ = 8017527530880.

The previous prime is 12227127210131. The next prime is 12227127210211. The reversal of 12227127210155 is 55101272172221.

It is not a de Polignac number, because 12227127210155 - 2¹⁰ = 12227127209131 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198816665 + ... + 198878154.

It is an arithmetic number, because the mean of its divisors is an integer number (551205020520).

Almost surely, 2^{12227127210155} is an apocalyptic number.

12227127210155 is a deficient number, since it is larger than the sum of its proper divisors (5411433446485).

12227127210155 is a wasteful number, since it uses less digits than its factorization.

12227127210155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397694891.

The product of its (nonzero) digits is 39200, while the sum is 38.

Adding to 12227127210155 its reverse (55101272172221), we get a palindrome (67328399382376).

The spelling of 12227127210155 in words is "twelve trillion, two hundred twenty-seven billion, one hundred twenty-seven million, two hundred ten thousand, one hundred fifty-five".