212220030142101 has 4 divisors (see below), whose sum is σ = 282960040189472. Its totient is φ = 141480020094732.

The previous prime is 212220030142039. The next prime is 212220030142151. The reversal of 212220030142101 is 101241030022212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212220030142101 - 2¹⁴ = 212220030125717 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 (212220030142151) 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 3 ways as a sum of consecutive naturals, for example, 35370005023681 + ... + 35370005023686.

It is an arithmetic number, because the mean of its divisors is an integer number (70740010047368).

Almost surely, 2^{212220030142101} is an apocalyptic number.

It is an amenable number.

212220030142101 is a deficient number, since it is larger than the sum of its proper divisors (70740010047371).

212220030142101 is an equidigital number, since it uses as much as digits as its factorization.

212220030142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70740010047370.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 212220030142101 its reverse (101241030022212), we get a palindrome (313461060164313).

The spelling of 212220030142101 in words is "two hundred twelve trillion, two hundred twenty billion, thirty million, one hundred forty-two thousand, one hundred one".