1212012210101 has 16 divisors (see below), whose sum is σ = 1514522296320. Its totient is φ = 942273762480.

The previous prime is 1212012210091. The next prime is 1212012210107. The reversal of 1212012210101 is 1010122102121.

It is a cyclic number.

It is not a de Polignac number, because 1212012210101 - 2⁶ = 1212012210037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212012210107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17893781 + ... + 17961386.

It is an arithmetic number, because the mean of its divisors is an integer number (94657643520).

Almost surely, 2^{1212012210101} is an apocalyptic number.

1212012210101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212012210101 is a deficient number, since it is larger than the sum of its proper divisors (302510086219).

1212012210101 is a wasteful number, since it uses less digits than its factorization.

1212012210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35855624.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212012210101 its reverse (1010122102121), we get a palindrome (2222134312222).

It can be divided in two parts, 12120 and 12210101, that added together give a palindrome (12222221).

The spelling of 1212012210101 in words is "one trillion, two hundred twelve billion, twelve million, two hundred ten thousand, one hundred one".