1212220210101 has 8 divisors (see below), whose sum is σ = 1616298904704. Its totient is φ = 808144161120.

The previous prime is 1212220210073. The next prime is 1212220210151. The reversal of 1212220210101 is 1010120222121.

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

It is not a de Polignac number, because 1212220210101 - 2¹¹ = 1212220208053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212220210151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014036 + ... + 1858146.

It is an arithmetic number, because the mean of its divisors is an integer number (202037363088).

Almost surely, 2^{1212220210101} is an apocalyptic number.

It is an amenable number.

1212220210101 is a deficient number, since it is larger than the sum of its proper divisors (404078694603).

1212220210101 is an equidigital number, since it uses as much as digits as its factorization.

1212220210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322811.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212220210101 its reverse (1010120222121), we get a palindrome (2222340432222).

The spelling of 1212220210101 in words is "one trillion, two hundred twelve billion, two hundred twenty million, two hundred ten thousand, one hundred one".