201112221001021 has 32 divisors (see below), whose sum is σ = 229647590899200. Its totient is φ = 174441583680000.

The previous prime is 201112221001019. The next prime is 201112221001037. The reversal of 201112221001021 is 120100122211102.

It is a cyclic number.

It is not a de Polignac number, because 201112221001021 - 2¹ = 201112221001019 is a prime.

It is a super-2 number, since 2×201112221001021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201112221000986 and 201112221001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112221001921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10795660 + ... + 22776538.

It is an arithmetic number, because the mean of its divisors is an integer number (7176487215600).

Almost surely, 2^{201112221001021} is an apocalyptic number.

It is an amenable number.

201112221001021 is a deficient number, since it is larger than the sum of its proper divisors (28535369898179).

201112221001021 is a wasteful number, since it uses less digits than its factorization.

201112221001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11981541.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201112221001021 its reverse (120100122211102), we get a palindrome (321212343212123).

The spelling of 201112221001021 in words is "two hundred one trillion, one hundred twelve billion, two hundred twenty-one million, one thousand, twenty-one".