1212212124201 has 32 divisors (see below), whose sum is σ = 1766359445760. Its totient is φ = 734964240384.

The previous prime is 1212212124199. The next prime is 1212212124203. The reversal of 1212212124201 is 1024212122121.

It is an interprime number because it is at equal distance from previous prime (1212212124199) and next prime (1212212124203).

It is not a de Polignac number, because 1212212124201 - 2¹ = 1212212124199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212212124203) 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, 2415700 + ... + 2874026.

It is an arithmetic number, because the mean of its divisors is an integer number (55198732680).

Almost surely, 2^{1212212124201} is an apocalyptic number.

It is an amenable number.

1212212124201 is a deficient number, since it is larger than the sum of its proper divisors (554147321559).

1212212124201 is a wasteful number, since it uses less digits than its factorization.

1212212124201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459345.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1212212124201 its reverse (1024212122121), we get a palindrome (2236424246322).

It can be divided in two parts, 121221 and 2124201, that added together give a palindrome (2245422).

The spelling of 1212212124201 in words is "one trillion, two hundred twelve billion, two hundred twelve million, one hundred twenty-four thousand, two hundred one".