22202001121212 has 144 divisors (see below), whose sum is σ = 61770204996864. Its totient is φ = 6723462477600.

The previous prime is 22202001121207. The next prime is 22202001121241. The reversal of 22202001121212 is 21212110020222.

It is a happy number.

22202001121212 is a `hidden beast` number, since 2 + 220 + 200 + 11 + 21 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73208073 + ... + 73510719.

Almost surely, 2^{22202001121212} is an apocalyptic number.

22202001121212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22202001121212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30885102498432).

22202001121212 is an abundant number, since it is smaller than the sum of its proper divisors (39568203875652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22202001121212 is a wasteful number, since it uses less digits than its factorization.

22202001121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304221 (or 304194 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22202001121212 its reverse (21212110020222), we get a palindrome (43414111141434).

The spelling of 22202001121212 in words is "twenty-two trillion, two hundred two billion, one million, one hundred twenty-one thousand, two hundred twelve".