20000010021210 has 96 divisors (see below), whose sum is σ = 52146827403840. Its totient is φ = 5318284656384.

The previous prime is 20000010021191. The next prime is 20000010021253. The reversal of 20000010021210 is 1212001000002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20000010021192 and 20000010021201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195637969 + ... + 195740171.

It is an arithmetic number, because the mean of its divisors is an integer number (543196118790).

Almost surely, 2^{20000010021210} is an apocalyptic number.

20000010021210 is an abundant number, since it is smaller than the sum of its proper divisors (32146817382630).

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

20000010021210 is a wasteful number, since it uses less digits than its factorization.

20000010021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108332 (or 108329 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20000010021210 its reverse (1212001000002), we get a palindrome (21212011021212).

The spelling of 20000010021210 in words is "twenty trillion, ten million, twenty-one thousand, two hundred ten".