216106201022 has 4 divisors (see below), whose sum is σ = 324159301536. Its totient is φ = 108053100510.

The previous prime is 216106201021. The next prime is 216106201061. The reversal of 216106201022 is 220102601612.

It is a happy number.

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

It is a super-2 number, since 2×216106201022² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216106201021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54026550254 + ... + 54026550257.

It is an arithmetic number, because the mean of its divisors is an integer number (81039825384).

Almost surely, 2^216106201022 is an apocalyptic number.

216106201022 is a deficient number, since it is larger than the sum of its proper divisors (108053100514).

216106201022 is a wasteful number, since it uses less digits than its factorization.

216106201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108053100513.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 216106201022 its reverse (220102601612), we get a palindrome (436208802634).

The spelling of 216106201022 in words is "two hundred sixteen billion, one hundred six million, two hundred one thousand, twenty-two".