201211001000022 has 32 divisors (see below), whose sum is σ = 433382560273152. Its totient is φ = 61910360136864.

The previous prime is 201211000999997. The next prime is 201211001000029. The reversal of 201211001000022 is 220000100112102.

It is a junction number, because it is equal to n+sod(n) for n = 201211000999971 and 201211001000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211001000029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8142378 + ... + 21649949.

It is an arithmetic number, because the mean of its divisors is an integer number (13543205008536).

Almost surely, 2^{201211001000022} is an apocalyptic number.

201211001000022 is an abundant number, since it is smaller than the sum of its proper divisors (232171559273130).

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

201211001000022 is a wasteful number, since it uses less digits than its factorization.

201211001000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29878932.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201211001000022 its reverse (220000100112102), we get a palindrome (421211101112124).

The spelling of 201211001000022 in words is "two hundred one trillion, two hundred eleven billion, one million, twenty-two", and thus it is an aban number.