201121001111022 has 16 divisors (see below), whose sum is σ = 402248796757632. Its totient is φ = 67039201281080.

The previous prime is 201121001111021. The next prime is 201121001111089. The reversal of 201121001111022 is 220111100121102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201121001110992 and 201121001111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121001111021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282720804 + ... + 283431287.

It is an arithmetic number, because the mean of its divisors is an integer number (25140549797352).

Almost surely, 2^{201121001111022} is an apocalyptic number.

201121001111022 is an abundant number, since it is smaller than the sum of its proper divisors (201127795646610).

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

201121001111022 is a wasteful number, since it uses less digits than its factorization.

201121001111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566211303.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201121001111022 its reverse (220111100121102), we get a palindrome (421232101232124).

The spelling of 201121001111022 in words is "two hundred one trillion, one hundred twenty-one billion, one million, one hundred eleven thousand, twenty-two".