1212210210101 has 8 divisors (see below), whose sum is σ = 1342148618784. Its totient is φ = 1085561381520.

The previous prime is 1212210210097. The next prime is 1212210210109. The reversal of 1212210210101 is 1010120122121.

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

It is not a de Polignac number, because 1212210210101 - 2² = 1212210210097 is a prime.

It is a super-2 number, since 2×1212210210101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210210109) 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 7 ways as a sum of consecutive naturals, for example, 822394250 + ... + 822395723.

It is an arithmetic number, because the mean of its divisors is an integer number (167768577348).

Almost surely, 2^{1212210210101} is an apocalyptic number.

1212210210101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1212210210101 is a deficient number, since it is larger than the sum of its proper divisors (129938408683).

1212210210101 is a wasteful number, since it uses less digits than its factorization.

1212210210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644790051.

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

Adding to 1212210210101 its reverse (1010120122121), we get a palindrome (2222330332222).

The spelling of 1212210210101 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred ten thousand, one hundred one".