21011122000122 has 32 divisors (see below), whose sum is σ = 42255099257280. Its totient is φ = 6964899384960.

The previous prime is 21011122000079. The next prime is 21011122000123. The reversal of 21011122000122 is 22100022111012.

It is not an unprimeable number, because it can be changed into a prime (21011122000123) 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, 90633654 + ... + 90865182.

It is an arithmetic number, because the mean of its divisors is an integer number (1320471851790).

Almost surely, 2^{21011122000122} is an apocalyptic number.

21011122000122 is an abundant number, since it is smaller than the sum of its proper divisors (21243977257158).

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

21011122000122 is a wasteful number, since it uses less digits than its factorization.

21011122000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315278.

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

Adding to 21011122000122 its reverse (22100022111012), we get a palindrome (43111144111134).

The spelling of 21011122000122 in words is "twenty-one trillion, eleven billion, one hundred twenty-two million, one hundred twenty-two", and thus it is an aban number.