21012011200202 has 8 divisors (see below), whose sum is σ = 34383291054912. Its totient is φ = 9550914181900.

The previous prime is 21012011200177. The next prime is 21012011200259. The reversal of 21012011200202 is 20200211021012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21012011200202² (a number of 27 digits) contains 22 as substring.

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, 477545709074 + ... + 477545709117.

It is an arithmetic number, because the mean of its divisors is an integer number (4297911381864).

Almost surely, 2^{21012011200202} is an apocalyptic number.

21012011200202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21012011200202 is a deficient number, since it is larger than the sum of its proper divisors (13371279854710).

21012011200202 is a wasteful number, since it uses less digits than its factorization.

21012011200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955091418204.

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

Adding to 21012011200202 its reverse (20200211021012), we get a palindrome (41212222221214).

The spelling of 21012011200202 in words is "twenty-one trillion, twelve billion, eleven million, two hundred thousand, two hundred two".