21000002033210 has 16 divisors (see below), whose sum is σ = 38174261123592. Its totient is φ = 8316832488000.

The previous prime is 21000002033191. The next prime is 21000002033243. The reversal of 21000002033210 is 1233020000012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20774826159481 + 225175873729 = 4557941^2 + 474527^2 .

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, 10396039601 + ... + 10396041620.

Almost surely, 2^{21000002033210} is an apocalyptic number.

21000002033210 is a deficient number, since it is larger than the sum of its proper divisors (17174259090382).

21000002033210 is a wasteful number, since it uses less digits than its factorization.

21000002033210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20792081329.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21000002033210 its reverse (1233020000012), we get a palindrome (22233022033222).

The spelling of 21000002033210 in words is "twenty-one trillion, two million, thirty-three thousand, two hundred ten".