1212212022101 has 16 divisors (see below), whose sum is σ = 1221864912000. Its totient is φ = 1202600063808.

The previous prime is 1212212022089. The next prime is 1212212022113. The reversal of 1212212022101 is 1012202122121.

It is an interprime number because it is at equal distance from previous prime (1212212022089) and next prime (1212212022113).

It is a cyclic number.

It is not a de Polignac number, because 1212212022101 - 2²² = 1212207827797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212212022101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212212022601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101121230 + ... + 101133216.

It is an arithmetic number, because the mean of its divisors is an integer number (76366557000).

Almost surely, 2^{1212212022101} is an apocalyptic number.

It is an amenable number.

1212212022101 is a deficient number, since it is larger than the sum of its proper divisors (9652889899).

1212212022101 is a wasteful number, since it uses less digits than its factorization.

1212212022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13628.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212212022101 its reverse (1012202122121), we get a palindrome (2224414144222).

The spelling of 1212212022101 in words is "one trillion, two hundred twelve billion, two hundred twelve million, twenty-two thousand, one hundred one".