202101225109 has 16 divisors (see below), whose sum is σ = 235168414848. Its totient is φ = 170103843072.

The previous prime is 202101225107. The next prime is 202101225119. The reversal of 202101225109 is 901522101202.

It is a cyclic number.

It is not a de Polignac number, because 202101225109 - 2¹ = 202101225107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101225107) 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, 755152 + ... + 987145.

It is an arithmetic number, because the mean of its divisors is an integer number (14698025928).

Almost surely, 2^202101225109 is an apocalyptic number.

It is an amenable number.

202101225109 is a deficient number, since it is larger than the sum of its proper divisors (33067189739).

202101225109 is a wasteful number, since it uses less digits than its factorization.

202101225109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742604.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 202101225109 in words is "two hundred two billion, one hundred one million, two hundred twenty-five thousand, one hundred nine".