20122201201212 has 120 divisors (see below), whose sum is σ = 57737596933632. Its totient is φ = 6060227738400.

The previous prime is 20122201201177. The next prime is 20122201201217. The reversal of 20122201201212 is 21210210222102.

It is a happy number.

20122201201212 is a `hidden beast` number, since 20 + 12 + 220 + 1 + 201 + 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 not an unprimeable number, because it can be changed into a prime (20122201201217) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16737964 + ... + 17899827.

Almost surely, 2^{20122201201212} is an apocalyptic number.

20122201201212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20122201201212 is an abundant number, since it is smaller than the sum of its proper divisors (37615395732420).

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

20122201201212 is a wasteful number, since it uses less digits than its factorization.

20122201201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34637981 (or 34637970 counting only the distinct ones).

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

Adding to 20122201201212 its reverse (21210210222102), we get a palindrome (41332411423314).

The spelling of 20122201201212 in words is "twenty trillion, one hundred twenty-two billion, two hundred one million, two hundred one thousand, two hundred twelve".