20210122200195 has 48 divisors (see below), whose sum is σ = 35908328831232. Its totient is φ = 10509625143360.

The previous prime is 20210122200181. The next prime is 20210122200199. The reversal of 20210122200195 is 59100222101202.

It is a happy number.

It is not a de Polignac number, because 20210122200195 - 2¹⁶ = 20210122134659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210122200199) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8040919 + ... + 10250688.

It is an arithmetic number, because the mean of its divisors is an integer number (748090183984).

Almost surely, 2^{20210122200195} is an apocalyptic number.

20210122200195 is a deficient number, since it is larger than the sum of its proper divisors (15698206631037).

20210122200195 is a wasteful number, since it uses less digits than its factorization.

20210122200195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18292232 (or 18292229 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 20210122200195 its reverse (59100222101202), we get a palindrome (79310344301397).

The spelling of 20210122200195 in words is "twenty trillion, two hundred ten billion, one hundred twenty-two million, two hundred thousand, one hundred ninety-five".