21022001121110 has 32 divisors (see below), whose sum is σ = 41284693563552. Its totient is φ = 7643414465280.

The previous prime is 21022001121109. The next prime is 21022001121119. The reversal of 21022001121110 is 1112110022012.

It is a super-2 number, since 2×21022001121110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022001121119) 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, 10979879 + ... + 12751538.

It is an arithmetic number, because the mean of its divisors is an integer number (1290146673861).

Almost surely, 2^{21022001121110} is an apocalyptic number.

21022001121110 is a deficient number, since it is larger than the sum of its proper divisors (20262692442442).

21022001121110 is a wasteful number, since it uses less digits than its factorization.

21022001121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23739488.

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

Adding to 21022001121110 its reverse (1112110022012), we get a palindrome (22134111143122).

The spelling of 21022001121110 in words is "twenty-one trillion, twenty-two billion, one million, one hundred twenty-one thousand, one hundred ten".