1212211000101 has 8 divisors (see below), whose sum is σ = 1617801828160. Its totient is φ = 807380419392.

The previous prime is 1212211000067. The next prime is 1212211000109. The reversal of 1212211000101 is 1010001122121.

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

It is not a de Polignac number, because 1212211000101 - 2¹⁹ = 1212210475813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212211000109) 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, 190058116 + ... + 190064493.

It is an arithmetic number, because the mean of its divisors is an integer number (202225228520).

Almost surely, 2^{1212211000101} is an apocalyptic number.

It is an amenable number.

1212211000101 is a deficient number, since it is larger than the sum of its proper divisors (405590828059).

1212211000101 is a wasteful number, since it uses less digits than its factorization.

1212211000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380123675.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1212211000101 its reverse (1010001122121), we get a palindrome (2222212122222).

The spelling of 1212211000101 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one hundred one", and thus it is an aban number.