20211001210222 has 16 divisors (see below), whose sum is σ = 30498563647440. Its totient is φ = 10044987467328.

The previous prime is 20211001210199. The next prime is 20211001210259. The reversal of 20211001210222 is 22201210011202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20211001210196 and 20211001210205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43302423 + ... + 43766674.

It is an arithmetic number, because the mean of its divisors is an integer number (1906160227965).

Almost surely, 2^{20211001210222} is an apocalyptic number.

20211001210222 is a deficient number, since it is larger than the sum of its proper divisors (10287562437218).

20211001210222 is a wasteful number, since it uses less digits than its factorization.

20211001210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87069795.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20211001210222 its reverse (22201210011202), we get a palindrome (42412211221424).

The spelling of 20211001210222 in words is "twenty trillion, two hundred eleven billion, one million, two hundred ten thousand, two hundred twenty-two".