20212202010001 has 4 divisors (see below), whose sum is σ = 20212907058100. Its totient is φ = 20211496961904.

The previous prime is 20212202009959. The next prime is 20212202010059. The reversal of 20212202010001 is 10001020221202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14538511443600 + 5673690566401 = 3812940^2 + 2381951^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212202010001 - 2⁴³ = 11416108987793 is a prime.

It is a super-2 number, since 2×20212202010001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212202010061) 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, 352481046 + ... + 352538383.

It is an arithmetic number, because the mean of its divisors is an integer number (5053226764525).

Almost surely, 2^{20212202010001} is an apocalyptic number.

It is an amenable number.

20212202010001 is a deficient number, since it is larger than the sum of its proper divisors (705048099).

20212202010001 is an equidigital number, since it uses as much as digits as its factorization.

20212202010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705048098.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20212202010001 its reverse (10001020221202), we get a palindrome (30213222231203).

The spelling of 20212202010001 in words is "twenty trillion, two hundred twelve billion, two hundred two million, ten thousand, one".