9142121010 has 32 divisors (see below), whose sum is σ = 23935735872. Its totient is φ = 2216271680.

The previous prime is 9142120951. The next prime is 9142121017. The reversal of 9142121010 is 101212419.

It is a happy number.

It is a super-2 number, since 2×9142121010² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9142121017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13851369 + ... + 13852028.

It is an arithmetic number, because the mean of its divisors is an integer number (747991746).

Almost surely, 2^9142121010 is an apocalyptic number.

9142121010 is an abundant number, since it is smaller than the sum of its proper divisors (14793614862).

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

9142121010 is a wasteful number, since it uses less digits than its factorization.

9142121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27703418.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 9142121010 is about 95614.4393384179. The cubic root of 9142121010 is about 2090.9757133100.

Adding to 9142121010 its reverse (101212419), we get a palindrome (9243333429).

The spelling of 9142121010 in words is "nine billion, one hundred forty-two million, one hundred twenty-one thousand, ten".