1020002012192 has 48 divisors (see below), whose sum is σ = 2036500807320. Its totient is φ = 502801385472.

The previous prime is 1020002012131. The next prime is 1020002012269. The reversal of 1020002012192 is 2912102000201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 954693143056 + 65308869136 = 977084^2 + 255556^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5489318 + ... + 5672090.

Almost surely, 2^{1020002012192} is an apocalyptic number.

It is an amenable number.

1020002012192 is a deficient number, since it is larger than the sum of its proper divisors (1016498795128).

1020002012192 is a wasteful number, since it uses less digits than its factorization.

1020002012192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185245 (or 185237 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1020002012192 its reverse (2912102000201), we get a palindrome (3932104012393).

The spelling of 1020002012192 in words is "one trillion, twenty billion, two million, twelve thousand, one hundred ninety-two".