21024100142012 has 12 divisors (see below), whose sum is σ = 40136918453016. Its totient is φ = 9556409155440.

The previous prime is 21024100141951. The next prime is 21024100142051.

21024100142012 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238910228843 + ... + 238910228930.

It is an arithmetic number, because the mean of its divisors is an integer number (3344743204418).

Almost surely, 2^{21024100142012} is an apocalyptic number.

21024100142012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21024100142012 is a deficient number, since it is larger than the sum of its proper divisors (19112818311004).

21024100142012 is a wasteful number, since it uses less digits than its factorization.

21024100142012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477820457788 (or 477820457786 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

It can be divided in two parts, 21024100 and 142012, that added together give a palindrome (21166112).

The spelling of 21024100142012 in words is "twenty-one trillion, twenty-four billion, one hundred million, one hundred forty-two thousand, twelve".