21133232202 has 32 divisors (see below), whose sum is σ = 45148793472. Its totient is φ = 6571357184.

The previous prime is 21133232179. The next prime is 21133232203. The reversal of 21133232202 is 20223233112.

It is a happy number.

It is a super-2 number, since 2×21133232202² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21133232203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 905238 + ... + 928289.

It is an arithmetic number, because the mean of its divisors is an integer number (1410899796).

Almost surely, 2^21133232202 is an apocalyptic number.

21133232202 is an abundant number, since it is smaller than the sum of its proper divisors (24015561270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21133232202 is a wasteful number, since it uses less digits than its factorization.

21133232202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833662.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21133232202 its reverse (20223233112), we get a palindrome (41356465314).

The spelling of 21133232202 in words is "twenty-one billion, one hundred thirty-three million, two hundred thirty-two thousand, two hundred two".