21220200101210 has 64 divisors (see below), whose sum is σ = 43014938886144. Its totient is φ = 7467166862400.

The previous prime is 21220200101203. The next prime is 21220200101213. The reversal of 21220200101210 is 1210100202212.

It is not an unprimeable number, because it can be changed into a prime (21220200101213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78304967 + ... + 78575493.

It is an arithmetic number, because the mean of its divisors is an integer number (672108420096).

Almost surely, 2^{21220200101210} is an apocalyptic number.

21220200101210 is an abundant number, since it is smaller than the sum of its proper divisors (21794738784934).

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

21220200101210 is a wasteful number, since it uses less digits than its factorization.

21220200101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293579.

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

Adding to 21220200101210 its reverse (1210100202212), we get a palindrome (22430300303422).

The spelling of 21220200101210 in words is "twenty-one trillion, two hundred twenty billion, two hundred million, one hundred one thousand, two hundred ten".