21022112002102 has 8 divisors (see below), whose sum is σ = 32385415787136. Its totient is φ = 10226973406392.

The previous prime is 21022112002097. The next prime is 21022112002153. The reversal of 21022112002102 is 20120021122012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 142041297238 + ... + 142041297385.

It is an arithmetic number, because the mean of its divisors is an integer number (4048176973392).

Almost surely, 2^{21022112002102} is an apocalyptic number.

21022112002102 is a deficient number, since it is larger than the sum of its proper divisors (11363303785034).

21022112002102 is a wasteful number, since it uses less digits than its factorization.

21022112002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284082594662.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21022112002102 its reverse (20120021122012), we get a palindrome (41142133124114).

The spelling of 21022112002102 in words is "twenty-one trillion, twenty-two billion, one hundred twelve million, two thousand, one hundred two".