21200011211022 has 32 divisors (see below), whose sum is σ = 51007545772800. Its totient is φ = 5738348899008.

The previous prime is 21200011211021. The next prime is 21200011211023. The reversal of 21200011211022 is 22011211000212.

It is an interprime number because it is at equal distance from previous prime (21200011211021) and next prime (21200011211023).

It is a junction number, because it is equal to n+sod(n) for n = 21200011210992 and 21200011211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200011211021) 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, 13283214247 + ... + 13283215842.

It is an arithmetic number, because the mean of its divisors is an integer number (1593985805400).

Almost surely, 2^{21200011211022} is an apocalyptic number.

21200011211022 is an abundant number, since it is smaller than the sum of its proper divisors (29807534561778).

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

21200011211022 is a wasteful number, since it uses less digits than its factorization.

21200011211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26566430120.

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

Adding to 21200011211022 its reverse (22011211000212), we get a palindrome (43211222211234).

The spelling of 21200011211022 in words is "twenty-one trillion, two hundred billion, eleven million, two hundred eleven thousand, twenty-two".