1002120020199 has 6 divisors (see below), whose sum is σ = 1447506695856. Its totient is φ = 668080013460.

The previous prime is 1002120020197. The next prime is 1002120020287. The reversal of 1002120020199 is 9910200212001.

It is not a de Polignac number, because 1002120020199 - 2¹ = 1002120020197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002120020197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55673334447 + ... + 55673334464.

It is an arithmetic number, because the mean of its divisors is an integer number (241251115976).

Almost surely, 2^{1002120020199} is an apocalyptic number.

1002120020199 is a deficient number, since it is larger than the sum of its proper divisors (445386675657).

1002120020199 is a wasteful number, since it uses less digits than its factorization.

1002120020199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111346668917 (or 111346668914 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 1002120020199 in words is "one trillion, two billion, one hundred twenty million, twenty thousand, one hundred ninety-nine".