21120022011110 has 32 divisors (see below), whose sum is σ = 43275175540992. Its totient is φ = 7346094611680.

The previous prime is 21120022011071. The next prime is 21120022011113. The reversal of 21120022011110 is 1111022002112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120022011113) 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, 4173914864 + ... + 4173919923.

It is an arithmetic number, because the mean of its divisors is an integer number (1352349235656).

Almost surely, 2^{21120022011110} is an apocalyptic number.

21120022011110 is an abundant number, since it is smaller than the sum of its proper divisors (22155153529882).

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

21120022011110 is a wasteful number, since it uses less digits than its factorization.

21120022011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8347834828.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21120022011110 its reverse (1111022002112), we get a palindrome (22231044013222).

The spelling of 21120022011110 in words is "twenty-one trillion, one hundred twenty billion, twenty-two million, eleven thousand, one hundred ten".