169020201121 has 16 divisors (see below), whose sum is σ = 178400903040. Its totient is φ = 159688609920.

The previous prime is 169020201079. The next prime is 169020201137. The reversal of 169020201121 is 121102020961.

It is a happy number.

It is not a de Polignac number, because 169020201121 - 2¹⁵ = 169020168353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169020201191) 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, 10735171 + ... + 10750903.

It is an arithmetic number, because the mean of its divisors is an integer number (11150056440).

Almost surely, 2^169020201121 is an apocalyptic number.

It is an amenable number.

169020201121 is a deficient number, since it is larger than the sum of its proper divisors (9380701919).

169020201121 is a wasteful number, since it uses less digits than its factorization.

169020201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17256.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 169020201121 in words is "one hundred sixty-nine billion, twenty million, two hundred one thousand, one hundred twenty-one".