22001201210 has 16 divisors (see below), whose sum is σ = 39609858600. Its totient is φ = 8798770176.

The previous prime is 22001201171. The next prime is 22001201213. The reversal of 22001201210 is 1210210022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21868790161 + 132411049 = 147881^2 + 11507^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22001201191 and 22001201200.

It is not an unprimeable number, because it can be changed into a prime (22001201213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159095 + ... + 263274.

Almost surely, 2^22001201210 is an apocalyptic number.

22001201210 is a deficient number, since it is larger than the sum of its proper divisors (17608657390).

22001201210 is a wasteful number, since it uses less digits than its factorization.

22001201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427585.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22001201210 its reverse (1210210022), we get a palindrome (23211411232).

The spelling of 22001201210 in words is "twenty-two billion, one million, two hundred one thousand, two hundred ten".