20210012122201 has 4 divisors (see below), whose sum is σ = 22047285951504. Its totient is φ = 18372738292900.

The previous prime is 20210012122159. The next prime is 20210012122213. The reversal of 20210012122201 is 10222121001202.

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 a cyclic number.

It is not a de Polignac number, because 20210012122201 - 2¹⁷ = 20210011991129 is a prime.

It is a super-2 number, since 2×20210012122201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20210012102201) 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, 918636914635 + ... + 918636914656.

It is an arithmetic number, because the mean of its divisors is an integer number (5511821487876).

Almost surely, 2^{20210012122201} is an apocalyptic number.

It is an amenable number.

20210012122201 is a deficient number, since it is larger than the sum of its proper divisors (1837273829303).

20210012122201 is a wasteful number, since it uses less digits than its factorization.

20210012122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837273829302.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20210012122201 its reverse (10222121001202), we get a palindrome (30432133123403).

The spelling of 20210012122201 in words is "twenty trillion, two hundred ten billion, twelve million, one hundred twenty-two thousand, two hundred one".