21122301021112 has 32 divisors (see below), whose sum is σ = 39738518507520. Its totient is φ = 10525400857440.

The previous prime is 21122301021109. The next prime is 21122301021113. The reversal of 21122301021112 is 21112010322112.

It is a self number, because there is not a number n which added to its sum of digits gives 21122301021112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122301021113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2055673 + ... + 6816919.

It is an arithmetic number, because the mean of its divisors is an integer number (1241828703360).

Almost surely, 2^{21122301021112} is an apocalyptic number.

It is an amenable number.

21122301021112 is a deficient number, since it is larger than the sum of its proper divisors (18616217486408).

21122301021112 is a wasteful number, since it uses less digits than its factorization.

21122301021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763131 (or 4763127 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21122301021112 its reverse (21112010322112), we get a palindrome (42234311343224).

The spelling of 21122301021112 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred one million, twenty-one thousand, one hundred twelve".