21011000102210 has 16 divisors (see below), whose sum is σ = 37819883097216. Its totient is φ = 8404381615728.

The previous prime is 21011000102159. The next prime is 21011000102221. The reversal of 21011000102210 is 1220100011012.

It is a junction number, because it is equal to n+sod(n) for n = 21011000102191 and 21011000102200.

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, 3086999 + ... + 7179941.

It is an arithmetic number, because the mean of its divisors is an integer number (2363742693576).

Almost surely, 2^{21011000102210} is an apocalyptic number.

21011000102210 is a deficient number, since it is larger than the sum of its proper divisors (16808882995006).

21011000102210 is a wasteful number, since it uses less digits than its factorization.

21011000102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606297.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21011000102210 its reverse (1220100011012), we get a palindrome (22231100113222).

The spelling of 21011000102210 in words is "twenty-one trillion, eleven billion, one hundred two thousand, two hundred ten".