1012152210161 has 4 divisors (see below), whose sum is σ = 1021978930752. Its totient is φ = 1002325489572.

The previous prime is 1012152210089. The next prime is 1012152210187. The reversal of 1012152210161 is 1610122512101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1012152210161 - 2¹⁰ = 1012152209137 is a prime.

It is a super-2 number, since 2×1012152210161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012152210961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4913360141 + ... + 4913360346.

It is an arithmetic number, because the mean of its divisors is an integer number (255494732688).

Almost surely, 2^{1012152210161} is an apocalyptic number.

It is an amenable number.

1012152210161 is a deficient number, since it is larger than the sum of its proper divisors (9826720591).

1012152210161 is an equidigital number, since it uses as much as digits as its factorization.

1012152210161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826720590.

The product of its (nonzero) digits is 240, while the sum is 23.

Adding to 1012152210161 its reverse (1610122512101), we get a palindrome (2622274722262).

The spelling of 1012152210161 in words is "one trillion, twelve billion, one hundred fifty-two million, two hundred ten thousand, one hundred sixty-one".