10121213142 has 16 divisors (see below), whose sum is σ = 22491584880. Its totient is φ = 3373737696.

The previous prime is 10121213119. The next prime is 10121213149. The reversal of 10121213142 is 24131212101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121213149) 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, 93714883 + ... + 93714990.

It is an arithmetic number, because the mean of its divisors is an integer number (1405724055).

Almost surely, 2^10121213142 is an apocalyptic number.

10121213142 is an abundant number, since it is smaller than the sum of its proper divisors (12370371738).

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

10121213142 is a wasteful number, since it uses less digits than its factorization.

10121213142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187429884 (or 187429878 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 10121213142 its reverse (24131212101), we get a palindrome (34252425243).

The spelling of 10121213142 in words is "ten billion, one hundred twenty-one million, two hundred thirteen thousand, one hundred forty-two".