212145926401227 has 32 divisors (see below), whose sum is σ = 348137772892672. Its totient is φ = 111900868982784.

The previous prime is 212145926401223. The next prime is 212145926401237. The reversal of 212145926401227 is 722104629541212.

It is not a de Polignac number, because 212145926401227 - 2² = 212145926401223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212145926401223) 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, 154099428 + ... + 155470014.

It is an arithmetic number, because the mean of its divisors is an integer number (10879305402896).

Almost surely, 2^{212145926401227} is an apocalyptic number.

212145926401227 is a deficient number, since it is larger than the sum of its proper divisors (135991846491445).

212145926401227 is a wasteful number, since it uses less digits than its factorization.

212145926401227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937587.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 212145926401227 in words is "two hundred twelve trillion, one hundred forty-five billion, nine hundred twenty-six million, four hundred one thousand, two hundred twenty-seven".