10121100212142 has 12 divisors (see below), whose sum is σ = 21929050459680. Its totient is φ = 3373700070708.

The previous prime is 10121100212099. The next prime is 10121100212143. The reversal of 10121100212142 is 24121200112101.

10121100212142 is a `hidden beast` number, since 101 + 211 + 0 + 0 + 212 + 142 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 562283345119 = 10121100212142 / (1 + 0 + 1 + 2 + 1 + 1 + 0 + 0 + 2 + 1 + 2 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121100212143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281141672542 + ... + 281141672577.

It is an arithmetic number, because the mean of its divisors is an integer number (1827420871640).

Almost surely, 2^{10121100212142} is an apocalyptic number.

10121100212142 is an abundant number, since it is smaller than the sum of its proper divisors (11807950247538).

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

10121100212142 is a wasteful number, since it uses less digits than its factorization.

10121100212142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562283345127 (or 562283345124 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10121100212142 its reverse (24121200112101), we get a palindrome (34242300324243).

The spelling of 10121100212142 in words is "ten trillion, one hundred twenty-one billion, one hundred million, two hundred twelve thousand, one hundred forty-two".