1012152053221 has 4 divisors (see below), whose sum is σ = 1027258800352. Its totient is φ = 997045306092.

The previous prime is 1012152053197. The next prime is 1012152053251. The reversal of 1012152053221 is 1223502512101.

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 1012152053221 - 2¹⁷ = 1012151922149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012152053251) 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, 7553373465 + ... + 7553373598.

It is an arithmetic number, because the mean of its divisors is an integer number (256814700088).

Almost surely, 2^{1012152053221} is an apocalyptic number.

It is an amenable number.

1012152053221 is a deficient number, since it is larger than the sum of its proper divisors (15106747131).

1012152053221 is an equidigital number, since it uses as much as digits as its factorization.

1012152053221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15106747130.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 1012152053221 its reverse (1223502512101), we get a palindrome (2235654565322).

The spelling of 1012152053221 in words is "one trillion, twelve billion, one hundred fifty-two million, fifty-three thousand, two hundred twenty-one".