21000032201110 has 64 divisors (see below), whose sum is σ = 42603468004800. Its totient is φ = 7405639667712.

The previous prime is 21000032201081. The next prime is 21000032201131. The reversal of 21000032201110 is 1110223000012.

It is a super-2 number, since 2×21000032201110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36238137 + ... + 36813076.

It is an arithmetic number, because the mean of its divisors is an integer number (665679187575).

Almost surely, 2^{21000032201110} is an apocalyptic number.

21000032201110 is an abundant number, since it is smaller than the sum of its proper divisors (21603435803690).

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

21000032201110 is a wasteful number, since it uses less digits than its factorization.

21000032201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73051345.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21000032201110 its reverse (1110223000012), we get a palindrome (22110255201122).

The spelling of 21000032201110 in words is "twenty-one trillion, thirty-two million, two hundred one thousand, one hundred ten".