21022110020102 has 8 divisors (see below), whose sum is σ = 31537270399512. Its totient is φ = 10509686553600.

The previous prime is 21022110020101. The next prime is 21022110020129. The reversal of 21022110020102 is 20102001122012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022110020101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684209024 + ... + 684239747.

It is an arithmetic number, because the mean of its divisors is an integer number (3942158799939).

Almost surely, 2^{21022110020102} is an apocalyptic number.

21022110020102 is a deficient number, since it is larger than the sum of its proper divisors (10515160379410).

21022110020102 is a wasteful number, since it uses less digits than its factorization.

21022110020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368456454.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21022110020102 its reverse (20102001122012), we get a palindrome (41124111142114).

The spelling of 21022110020102 in words is "twenty-one trillion, twenty-two billion, one hundred ten million, twenty thousand, one hundred two".