1212112120201 has 8 divisors (see below), whose sum is σ = 1296119892744. Its totient is φ = 1129516243200.

The previous prime is 1212112120171. The next prime is 1212112120223. The reversal of 1212112120201 is 1020212112121.

It can be written as a sum of positive squares in 4 ways, for example, as 1033931046976 + 178181073225 = 1016824^2 + 422115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212112120201 - 2¹¹ = 1212112118153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212112120001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 352972110 + ... + 352975543.

It is an arithmetic number, because the mean of its divisors is an integer number (162014986593).

Almost surely, 2^{1212112120201} is an apocalyptic number.

It is an amenable number.

1212112120201 is a deficient number, since it is larger than the sum of its proper divisors (84007772543).

1212112120201 is a wasteful number, since it uses less digits than its factorization.

1212112120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705947771.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212112120201 its reverse (1020212112121), we get a palindrome (2232324232322).

The spelling of 1212112120201 in words is "one trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty thousand, two hundred one".