21010201100212 has 12 divisors (see below), whose sum is σ = 36778241283840. Its totient is φ = 10502132161976.

The previous prime is 21010201100209. The next prime is 21010201100249. The reversal of 21010201100212 is 21200110201012.

It is a junction number, because it is equal to n+sod(n) for n = 21010201100192 and 21010201100201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 742081108 + ... + 742109419.

It is an arithmetic number, because the mean of its divisors is an integer number (3064853440320).

Almost surely, 2^{21010201100212} is an apocalyptic number.

It is an amenable number.

21010201100212 is a deficient number, since it is larger than the sum of its proper divisors (15768040183628).

21010201100212 is a wasteful number, since it uses less digits than its factorization.

21010201100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484194070 (or 1484194068 counting only the distinct ones).

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

Adding to 21010201100212 its reverse (21200110201012), we get a palindrome (42210311301224).

The spelling of 21010201100212 in words is "twenty-one trillion, ten billion, two hundred one million, one hundred thousand, two hundred twelve".