21402142150112 has 48 divisors (see below), whose sum is σ = 43595326625760. Its totient is φ = 10330430197248.

The previous prime is 21402142150111. The next prime is 21402142150163. The reversal of 21402142150112 is 21105124120412.

It is a super-2 number, since 2×21402142150112² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21402142150111) 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, 4036733 + ... + 7687619.

It is an arithmetic number, because the mean of its divisors is an integer number (908235971370).

Almost surely, 2^{21402142150112} is an apocalyptic number.

It is an amenable number.

21402142150112 is an abundant number, since it is smaller than the sum of its proper divisors (22193184475648).

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

21402142150112 is a wasteful number, since it uses less digits than its factorization.

21402142150112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657243 (or 3657235 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

Adding to 21402142150112 its reverse (21105124120412), we get a palindrome (42507266270524).

The spelling of 21402142150112 in words is "twenty-one trillion, four hundred two billion, one hundred forty-two million, one hundred fifty thousand, one hundred twelve".