1212202111101 has 8 divisors (see below), whose sum is σ = 1616294729280. Its totient is φ = 808122116832.

The previous prime is 1212202111073. The next prime is 1212202111121. The reversal of 1212202111101 is 1011112022121.

It is a happy number.

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

It is not a de Polignac number, because 1212202111101 - 2⁵ = 1212202111069 is a prime.

It is a super-2 number, since 2×1212202111101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212202111121) 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, 2929600 + ... + 3317673.

It is an arithmetic number, because the mean of its divisors is an integer number (202036841160).

Almost surely, 2^{1212202111101} is an apocalyptic number.

It is an amenable number.

1212202111101 is a deficient number, since it is larger than the sum of its proper divisors (404092618179).

1212202111101 is an equidigital number, since it uses as much as digits as its factorization.

1212202111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311955.

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

Adding to 1212202111101 its reverse (1011112022121), we get a palindrome (2223314133222).

The spelling of 1212202111101 in words is "one trillion, two hundred twelve billion, two hundred two million, one hundred eleven thousand, one hundred one".