21011232202 has 16 divisors (see below), whose sum is σ = 31835138400. Its totient is φ = 10399560400.

The previous prime is 21011232167. The next prime is 21011232211. The reversal of 21011232202 is 20223211012.

It is a happy number.

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, 2042949 + ... + 2053207.

It is an arithmetic number, because the mean of its divisors is an integer number (1989696150).

Almost surely, 2^21011232202 is an apocalyptic number.

21011232202 is a deficient number, since it is larger than the sum of its proper divisors (10823906198).

21011232202 is a wasteful number, since it uses less digits than its factorization.

21011232202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20501.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21011232202 its reverse (20223211012), we get a palindrome (41234443214).

The spelling of 21011232202 in words is "twenty-one billion, eleven million, two hundred thirty-two thousand, two hundred two".