21010210201120 has 96 divisors (see below), whose sum is σ = 57934537210368. Its totient is φ = 7050234651648.

The previous prime is 21010210201117. The next prime is 21010210201129. The reversal of 21010210201120 is 2110201201012.

It is a self number, because there is not a number n which added to its sum of digits gives 21010210201120.

It is not an unprimeable number, because it can be changed into a prime (21010210201129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199512427 + ... + 199617706.

It is an arithmetic number, because the mean of its divisors is an integer number (603484762608).

Almost surely, 2^{21010210201120} is an apocalyptic number.

21010210201120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21010210201120 is an abundant number, since it is smaller than the sum of its proper divisors (36924327009248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21010210201120 is a wasteful number, since it uses less digits than its factorization.

21010210201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399130202 (or 399130194 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21010210201120 its reverse (2110201201012), we get a palindrome (23120411402132).

The spelling of 21010210201120 in words is "twenty-one trillion, ten billion, two hundred ten million, two hundred one thousand, one hundred twenty".