21001201010222 has 8 divisors (see below), whose sum is σ = 31501831913256. Its totient is φ = 10500590372472.

The previous prime is 21001201010201. The next prime is 21001201010227. The reversal of 21001201010222 is 22201010210012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21001201010197 and 21001201010206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001201010227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2136728 + ... + 6824075.

It is an arithmetic number, because the mean of its divisors is an integer number (3937728989157).

Almost surely, 2^{21001201010222} is an apocalyptic number.

21001201010222 is a deficient number, since it is larger than the sum of its proper divisors (10500630903034).

21001201010222 is a wasteful number, since it uses less digits than its factorization.

21001201010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10132642.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21001201010222 its reverse (22201010210012), we get a palindrome (43202211220234).

The spelling of 21001201010222 in words is "twenty-one trillion, one billion, two hundred one million, ten thousand, two hundred twenty-two".