21010022012102 has 8 divisors (see below), whose sum is σ = 31821004212816. Its totient is φ = 10403020607832.

The previous prime is 21010022012101. The next prime is 21010022012113. The reversal of 21010022012102 is 20121022001012.

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 (21010022012101) 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, 50995198853 + ... + 50995199264.

It is an arithmetic number, because the mean of its divisors is an integer number (3977625526602).

Almost surely, 2^{21010022012102} is an apocalyptic number.

21010022012102 is a deficient number, since it is larger than the sum of its proper divisors (10810982200714).

21010022012102 is a wasteful number, since it uses less digits than its factorization.

21010022012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101990398222.

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

Adding to 21010022012102 its reverse (20121022001012), we get a palindrome (41131044013114).

The spelling of 21010022012102 in words is "twenty-one trillion, ten billion, twenty-two million, twelve thousand, one hundred two".