20101212010222 has 16 divisors (see below), whose sum is σ = 34470304362720. Its totient is φ = 8612034203808.

The previous prime is 20101212010213. The next prime is 20101212010223. The reversal of 20101212010222 is 22201021210102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20101212010196 and 20101212010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101212010223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230866873 + ... + 230953924.

It is an arithmetic number, because the mean of its divisors is an integer number (2154394022670).

Almost surely, 2^{20101212010222} is an apocalyptic number.

20101212010222 is a deficient number, since it is larger than the sum of its proper divisors (14369092352498).

20101212010222 is a wasteful number, since it uses less digits than its factorization.

20101212010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461823915.

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

Adding to 20101212010222 its reverse (22201021210102), we get a palindrome (42302233220324).

The spelling of 20101212010222 in words is "twenty trillion, one hundred one billion, two hundred twelve million, ten thousand, two hundred twenty-two".