99102120021011 has 16 divisors (see below), whose sum is σ = 99875077817760. Its totient is φ = 98331775027200.

The previous prime is 99102120020987. The next prime is 99102120021017. The reversal of 99102120021011 is 11012002120199.

It is a cyclic number.

It is not a de Polignac number, because 99102120021011 - 2¹⁴ = 99102120004627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99102120021017) 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, 201249551 + ... + 201741383.

It is an arithmetic number, because the mean of its divisors is an integer number (6242192363610).

Almost surely, 2^{99102120021011} is an apocalyptic number.

99102120021011 is a deficient number, since it is larger than the sum of its proper divisors (772957796749).

99102120021011 is a wasteful number, since it uses less digits than its factorization.

99102120021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494486.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 99102120021011 in words is "ninety-nine trillion, one hundred two billion, one hundred twenty million, twenty-one thousand, eleven".