21442100530102 has 64 divisors (see below), whose sum is σ = 36964854558720. Its totient is φ = 9137875643424.

The previous prime is 21442100530099. The next prime is 21442100530127. The reversal of 21442100530102 is 20103500124412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6694378833 + ... + 6694382035.

It is an arithmetic number, because the mean of its divisors is an integer number (577575852480).

Almost surely, 2^{21442100530102} is an apocalyptic number.

21442100530102 is a deficient number, since it is larger than the sum of its proper divisors (15522754028618).

21442100530102 is a wasteful number, since it uses less digits than its factorization.

21442100530102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6217.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 21442100530102 its reverse (20103500124412), we get a palindrome (41545600654514).

The spelling of 21442100530102 in words is "twenty-one trillion, four hundred forty-two billion, one hundred million, five hundred thirty thousand, one hundred two".