21210201001120 has 48 divisors (see below), whose sum is σ = 52746420918240. Its totient is φ = 8037549851904.

The previous prime is 21210201001103. The next prime is 21210201001133. The reversal of 21210201001120 is 2110010201212.

It is a self number, because there is not a number n which added to its sum of digits gives 21210201001120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3488516862 + ... + 3488522941.

It is an arithmetic number, because the mean of its divisors is an integer number (1098883769130).

Almost surely, 2^{21210201001120} is an apocalyptic number.

21210201001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21210201001120 is an abundant number, since it is smaller than the sum of its proper divisors (31536219917120).

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

21210201001120 is a wasteful number, since it uses less digits than its factorization.

21210201001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6977039837 (or 6977039829 counting only the distinct ones).

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

Adding to 21210201001120 its reverse (2110010201212), we get a palindrome (23320211202332).

The spelling of 21210201001120 in words is "twenty-one trillion, two hundred ten billion, two hundred one million, one thousand, one hundred twenty".