10021231101042 has 80 divisors (see below), whose sum is σ = 25674438030912. Its totient is φ = 2861914356000.

The previous prime is 10021231100999. The next prime is 10021231101097. The reversal of 10021231101042 is 24010113212001.

10021231101042 is a `hidden beast` number, since 100 + 212 + 311 + 0 + 1 + 0 + 42 = 666.

It is a super-2 number, since 2×10021231101042² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 512917 + ... + 4506167.

Almost surely, 2^{10021231101042} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10021231101042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12837219015456).

10021231101042 is an abundant number, since it is smaller than the sum of its proper divisors (15653206929870).

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

10021231101042 is a wasteful number, since it uses less digits than its factorization.

10021231101042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995485 (or 3995476 counting only the distinct ones).

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

Adding to 10021231101042 its reverse (24010113212001), we get a palindrome (34031344313043).

The spelling of 10021231101042 in words is "ten trillion, twenty-one billion, two hundred thirty-one million, one hundred one thousand, forty-two".