21142241102 has 16 divisors (see below), whose sum is σ = 33238000512. Its totient is φ = 10066957560.

The previous prime is 21142241083. The next prime is 21142241123. The reversal of 21142241102 is 20114224112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001924 + ... + 1022807.

It is an arithmetic number, because the mean of its divisors is an integer number (2077375032).

Almost surely, 2^21142241102 is an apocalyptic number.

21142241102 is a deficient number, since it is larger than the sum of its proper divisors (12095759410).

21142241102 is a wasteful number, since it uses less digits than its factorization.

21142241102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024983.

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

Adding to 21142241102 its reverse (20114224112), we get a palindrome (41256465214).

It can be divided in two parts, 2114224110 and 2, that added together give a palindrome (2114224112).

The spelling of 21142241102 in words is "twenty-one billion, one hundred forty-two million, two hundred forty-one thousand, one hundred two".