212122010020101 has 4 divisors (see below), whose sum is σ = 282829346693472. Its totient is φ = 141414673346732.

The previous prime is 212122010020003. The next prime is 212122010020133. The reversal of 212122010020101 is 101020010221212.

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 a cyclic number.

It is not a de Polignac number, because 212122010020101 - 2⁷ = 212122010019973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122015020101) 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, 35353668336681 + ... + 35353668336686.

It is an arithmetic number, because the mean of its divisors is an integer number (70707336673368).

Almost surely, 2^{212122010020101} is an apocalyptic number.

It is an amenable number.

212122010020101 is a deficient number, since it is larger than the sum of its proper divisors (70707336673371).

212122010020101 is an equidigital number, since it uses as much as digits as its factorization.

212122010020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70707336673370.

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

Adding to 212122010020101 its reverse (101020010221212), we get a palindrome (313142020241313).

The spelling of 212122010020101 in words is "two hundred twelve trillion, one hundred twenty-two billion, ten million, twenty thousand, one hundred one".