1212110201121 has 8 divisors (see below), whose sum is σ = 1686414192960. Its totient is φ = 772939838352.

The previous prime is 1212110201111. The next prime is 1212110201131. The reversal of 1212110201121 is 1211020112121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1212110201111) and next prime (1212110201131).

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

It is not a de Polignac number, because 1212110201121 - 2¹⁴ = 1212110184737 is a prime.

It is a super-2 number, since 2×1212110201121² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212110201121.

It is not an unprimeable number, because it can be changed into a prime (1212110201111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8783407186 + ... + 8783407323.

It is an arithmetic number, because the mean of its divisors is an integer number (210801774120).

Almost surely, 2^{1212110201121} is an apocalyptic number.

It is an amenable number.

1212110201121 is a deficient number, since it is larger than the sum of its proper divisors (474303991839).

1212110201121 is a wasteful number, since it uses less digits than its factorization.

1212110201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17566814535.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1212110201121 its reverse (1211020112121), we get a palindrome (2423130313242).

The spelling of 1212110201121 in words is "one trillion, two hundred twelve billion, one hundred ten million, two hundred one thousand, one hundred twenty-one".