10215135412 has 12 divisors (see below), whose sum is σ = 18213779556. Its totient is φ = 5011198400.

The previous prime is 10215135377. The next prime is 10215135419. The reversal of 10215135412 is 21453151201.

It can be written as a sum of positive squares in 2 ways, for example, as 3064065316 + 7151070096 = 55354^2 + 84564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215135419) 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, 24092089 + ... + 24092512.

It is an arithmetic number, because the mean of its divisors is an integer number (1517814963).

Almost surely, 2^10215135412 is an apocalyptic number.

It is an amenable number.

10215135412 is a deficient number, since it is larger than the sum of its proper divisors (7998644144).

10215135412 is a wasteful number, since it uses less digits than its factorization.

10215135412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48184658 (or 48184656 counting only the distinct ones).

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

Adding to 10215135412 its reverse (21453151201), we get a palindrome (31668286613).

The spelling of 10215135412 in words is "ten billion, two hundred fifteen million, one hundred thirty-five thousand, four hundred twelve".