201202101109 has 4 divisors (see below), whose sum is σ = 201343099104. Its totient is φ = 201061103116.

The previous prime is 201202101101. The next prime is 201202101131. The reversal of 201202101109 is 901101202102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201202101109 - 2³ = 201202101101 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 (201202101101) 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, 70496857 + ... + 70499710.

It is an arithmetic number, because the mean of its divisors is an integer number (50335774776).

Almost surely, 2^201202101109 is an apocalyptic number.

It is an amenable number.

201202101109 is a deficient number, since it is larger than the sum of its proper divisors (140997995).

201202101109 is a wasteful number, since it uses less digits than its factorization.

201202101109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140997994.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 201202101109 in words is "two hundred one billion, two hundred two million, one hundred one thousand, one hundred nine".