21233000131222 has 32 divisors (see below), whose sum is σ = 35943467627520. Its totient is φ = 9318439310880.

The previous prime is 21233000131219. The next prime is 21233000131237. The reversal of 21233000131222 is 22213100033212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21233000131193 and 21233000131202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66170893 + ... + 66490999.

It is an arithmetic number, because the mean of its divisors is an integer number (1123233363360).

Almost surely, 2^{21233000131222} is an apocalyptic number.

21233000131222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21233000131222 is a deficient number, since it is larger than the sum of its proper divisors (14710467496298).

21233000131222 is a wasteful number, since it uses less digits than its factorization.

21233000131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424116.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21233000131222 its reverse (22213100033212), we get a palindrome (43446100164434).

The spelling of 21233000131222 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred thirty-one thousand, two hundred twenty-two".