201021100001222 has 64 divisors (see below), whose sum is σ = 311197873975296. Its totient is φ = 97331373770400.

The previous prime is 201021100001153. The next prime is 201021100001251. The reversal of 201021100001222 is 222100001120102.

It is a junction number, because it is equal to n+sod(n) for n = 201021100001197 and 201021100001206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36932038433 + ... + 36932043875.

It is an arithmetic number, because the mean of its divisors is an integer number (4862466780864).

Almost surely, 2^{201021100001222} is an apocalyptic number.

201021100001222 is a deficient number, since it is larger than the sum of its proper divisors (110176773974074).

201021100001222 is a wasteful number, since it uses less digits than its factorization.

201021100001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10705.

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

Adding to 201021100001222 its reverse (222100001120102), we get a palindrome (423121101121324).

The spelling of 201021100001222 in words is "two hundred one trillion, twenty-one billion, one hundred million, one thousand, two hundred twenty-two".