20122121202099 has 32 divisors (see below), whose sum is σ = 30812162088960. Its totient is φ = 11442216630432.

The previous prime is 20122121202037. The next prime is 20122121202107. The reversal of 20122121202099 is 99020212122102.

It is not a de Polignac number, because 20122121202099 - 2⁸ = 20122121201843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20122121207099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5757352 + ... + 8566874.

It is an arithmetic number, because the mean of its divisors is an integer number (962880065280).

Almost surely, 2^{20122121202099} is an apocalyptic number.

20122121202099 is a deficient number, since it is larger than the sum of its proper divisors (10690040886861).

20122121202099 is a wasteful number, since it uses less digits than its factorization.

20122121202099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811199.

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 20122121202099 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred two thousand, ninety-nine".