21200101201122 has 32 divisors (see below), whose sum is σ = 42416699941440. Its totient is φ = 7063951330560.

The previous prime is 21200101201043. The next prime is 21200101201127. The reversal of 21200101201122 is 22110210100212.

It is not an unprimeable number, because it can be changed into a prime (21200101201127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178571622 + ... + 178690302.

It is an arithmetic number, because the mean of its divisors is an integer number (1325521873170).

Almost surely, 2^{21200101201122} is an apocalyptic number.

21200101201122 is an abundant number, since it is smaller than the sum of its proper divisors (21216598740318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21200101201122 is a wasteful number, since it uses less digits than its factorization.

21200101201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130018.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21200101201122 its reverse (22110210100212), we get a palindrome (43310311301334).

The spelling of 21200101201122 in words is "twenty-one trillion, two hundred billion, one hundred one million, two hundred one thousand, one hundred twenty-two".