212020012101 has 4 divisors (see below), whose sum is σ = 282693349472. Its totient is φ = 141346674732.

The previous prime is 212020012079. The next prime is 212020012121. The reversal of 212020012101 is 101210020212.

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 212020012101 - 2¹⁸ = 212019749957 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 (212020012121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35336668681 + ... + 35336668686.

It is an arithmetic number, because the mean of its divisors is an integer number (70673337368).

Almost surely, 2^212020012101 is an apocalyptic number.

It is an amenable number.

212020012101 is a deficient number, since it is larger than the sum of its proper divisors (70673337371).

212020012101 is an equidigital number, since it uses as much as digits as its factorization.

212020012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70673337370.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212020012101 its reverse (101210020212), we get a palindrome (313230032313).

The spelling of 212020012101 in words is "two hundred twelve billion, twenty million, twelve thousand, one hundred one".