202122011999 has 16 divisors (see below), whose sum is σ = 205659648000. Its totient is φ = 198611125440.

The previous prime is 202122011981. The next prime is 202122012013. The reversal of 202122011999 is 999110221202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202122011999 - 2¹⁶ = 202121946463 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 (202122011599) 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, 14769242 + ... + 14782920.

It is an arithmetic number, because the mean of its divisors is an integer number (12853728000).

Almost surely, 2^202122011999 is an apocalyptic number.

202122011999 is a deficient number, since it is larger than the sum of its proper divisors (3537636001).

202122011999 is a wasteful number, since it uses less digits than its factorization.

202122011999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14638.

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 202122011999 in words is "two hundred two billion, one hundred twenty-two million, eleven thousand, nine hundred ninety-nine".