10521213342 has 16 divisors (see below), whose sum is σ = 21093880080. Its totient is φ = 3498495552.

The previous prime is 10521213331. The next prime is 10521213343. The reversal of 10521213342 is 24331212501.

It is a super-2 number, since 2×10521213342² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521213343) 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, 2141233 + ... + 2146140.

It is an arithmetic number, because the mean of its divisors is an integer number (1318367505).

Almost surely, 2^10521213342 is an apocalyptic number.

10521213342 is an abundant number, since it is smaller than the sum of its proper divisors (10572666738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10521213342 is a wasteful number, since it uses less digits than its factorization.

10521213342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287787.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 10521213342 its reverse (24331212501), we get a palindrome (34852425843).

The spelling of 10521213342 in words is "ten billion, five hundred twenty-one million, two hundred thirteen thousand, three hundred forty-two".