21000200211122 has 32 divisors (see below), whose sum is σ = 35797914662400. Its totient is φ = 9152875843200.

The previous prime is 21000200210993. The next prime is 21000200211157. The reversal of 21000200211122 is 22111200200012.

It is a junction number, because it is equal to n+sod(n) for n = 21000200211097 and 21000200211106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141173747 + ... + 141322422.

It is an arithmetic number, because the mean of its divisors is an integer number (1118684833200).

Almost surely, 2^{21000200211122} is an apocalyptic number.

21000200211122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21000200211122 is a deficient number, since it is larger than the sum of its proper divisors (14797714451278).

21000200211122 is a wasteful number, since it uses less digits than its factorization.

21000200211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282496322.

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

Adding to 21000200211122 its reverse (22111200200012), we get a palindrome (43111400411134).

The spelling of 21000200211122 in words is "twenty-one trillion, two hundred million, two hundred eleven thousand, one hundred twenty-two".