1012102201009 has 8 divisors (see below), whose sum is σ = 1013041317960. Its totient is φ = 1011163262976.

The previous prime is 1012102200997. The next prime is 1012102201039. The reversal of 1012102201009 is 9001022012101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 449972640000 + 562129561009 = 670800^2 + 749753^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012102201009 - 2³⁷ = 874663247537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012102201039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13018437 + ... + 13095949.

It is an arithmetic number, because the mean of its divisors is an integer number (126630164745).

Almost surely, 2^{1012102201009} is an apocalyptic number.

It is an amenable number.

1012102201009 is a deficient number, since it is larger than the sum of its proper divisors (939116951).

1012102201009 is a wasteful number, since it uses less digits than its factorization.

1012102201009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89459.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 1012102201009 in words is "one trillion, twelve billion, one hundred two million, two hundred one thousand, nine".