21010200221210 has 16 divisors (see below), whose sum is σ = 38697857152416. Its totient is φ = 8208636365328.

The previous prime is 21010200221207. The next prime is 21010200221233. The reversal of 21010200221210 is 1212200201012.

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, 24430464944 + ... + 24430465803.

It is an arithmetic number, because the mean of its divisors is an integer number (2418616072026).

Almost surely, 2^{21010200221210} is an apocalyptic number.

21010200221210 is a deficient number, since it is larger than the sum of its proper divisors (17687656931206).

21010200221210 is a wasteful number, since it uses less digits than its factorization.

21010200221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48860930797.

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

Adding to 21010200221210 its reverse (1212200201012), we get a palindrome (22222400422222).

The spelling of 21010200221210 in words is "twenty-one trillion, ten billion, two hundred million, two hundred twenty-one thousand, two hundred ten".