202012022109 has 16 divisors (see below), whose sum is σ = 271007130240. Its totient is φ = 133846065600.

The previous prime is 202012022101. The next prime is 202012022119. The reversal of 202012022109 is 901220210202.

It is a happy number.

It is not a de Polignac number, because 202012022109 - 2³ = 202012022101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202012022101) 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, 3331159 + ... + 3391259.

It is an arithmetic number, because the mean of its divisors is an integer number (16937945640).

Almost surely, 2^202012022109 is an apocalyptic number.

It is an amenable number.

202012022109 is a deficient number, since it is larger than the sum of its proper divisors (68995108131).

202012022109 is a wasteful number, since it uses less digits than its factorization.

202012022109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66980.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 202012022109 in words is "two hundred two billion, twelve million, twenty-two thousand, one hundred nine".