9012201001123 has 4 divisors (see below), whose sum is σ = 9013227105888. Its totient is φ = 9011174896360.

The previous prime is 9012201001121. The next prime is 9012201001171. The reversal of 9012201001123 is 3211001022109.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9012201001123 - 2¹ = 9012201001121 is a prime.

It is a super-2 number, since 2×9012201001123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9012201001094 and 9012201001103.

It is not an unprimeable number, because it can be changed into a prime (9012201001121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513039208 + ... + 513056773.

It is an arithmetic number, because the mean of its divisors is an integer number (2253306776472).

Almost surely, 2^{9012201001123} is an apocalyptic number.

9012201001123 is a deficient number, since it is larger than the sum of its proper divisors (1026104765).

9012201001123 is a wasteful number, since it uses less digits than its factorization.

9012201001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026104764.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 9012201001123 in words is "nine trillion, twelve billion, two hundred one million, one thousand, one hundred twenty-three".