2120001192 has 24 divisors (see below), whose sum is σ = 5741670090. Its totient is φ = 706667040.

The previous prime is 2120001151. The next prime is 2120001197. The reversal of 2120001192 is 2911000212.

It can be written as a sum of positive squares in only one way, i.e., 1753431876 + 366569316 = 41874^2 + 19146^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2120001197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14722159 + ... + 14722302.

Almost surely, 2^2120001192 is an apocalyptic number.

It is an amenable number.

2120001192 is an abundant number, since it is smaller than the sum of its proper divisors (3621668898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2120001192 is a wasteful number, since it uses less digits than its factorization.

2120001192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29444473 (or 29444466 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 2120001192 is about 46043.4706771764. The cubic root of 2120001192 is about 1284.6318984799.

The spelling of 2120001192 in words is "two billion, one hundred twenty million, one thousand, one hundred ninety-two".