201201020122212 has 192 divisors, whose sum is σ = 603710896723200. Its totient is φ = 57270794434560.

The previous prime is 201201020122189. The next prime is 201201020122237. The reversal of 201201020122212 is 212221020102102.

It is a happy number.

201201020122212 is a `hidden beast` number, since 201 + 20 + 10 + 201 + 22 + 212 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 493498 + ... + 20066030.

It is an arithmetic number, because the mean of its divisors is an integer number (3144327587100).

Almost surely, 2^{201201020122212} is an apocalyptic number.

201201020122212 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 201201020122212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301855448361600).

201201020122212 is an abundant number, since it is smaller than the sum of its proper divisors (402509876600988).

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

201201020122212 is a wasteful number, since it uses less digits than its factorization.

201201020122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19573083 (or 19573075 counting only the distinct ones).

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

Adding to 201201020122212 its reverse (212221020102102), we get a palindrome (413422040224314).

The spelling of 201201020122212 in words is "two hundred one trillion, two hundred one billion, twenty million, one hundred twenty-two thousand, two hundred twelve".