21120012022102 has 8 divisors (see below), whose sum is σ = 36205734895056. Its totient is φ = 9051433723752.

The previous prime is 21120012022091. The next prime is 21120012022129. The reversal of 21120012022102 is 20122021002112.

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, 754286143633 + ... + 754286143660.

It is an arithmetic number, because the mean of its divisors is an integer number (4525716861882).

Almost surely, 2^{21120012022102} is an apocalyptic number.

21120012022102 is a deficient number, since it is larger than the sum of its proper divisors (15085722872954).

21120012022102 is a wasteful number, since it uses less digits than its factorization.

21120012022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508572287302.

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

Adding to 21120012022102 its reverse (20122021002112), we get a palindrome (41242033024214).

The spelling of 21120012022102 in words is "twenty-one trillion, one hundred twenty billion, twelve million, twenty-two thousand, one hundred two".