21220210011110 has 128 divisors (see below), whose sum is σ = 44289514368000. Its totient is φ = 7244869547520.

The previous prime is 21220210011103. The next prime is 21220210011113. The reversal of 21220210011110 is 1111001202212.

It is a super-2 number, since 2×21220210011110² (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 (21220210011113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29147816 + ... + 29866964.

It is an arithmetic number, because the mean of its divisors is an integer number (346011831000).

Almost surely, 2^{21220210011110} is an apocalyptic number.

21220210011110 is an abundant number, since it is smaller than the sum of its proper divisors (23069304356890).

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

21220210011110 is a wasteful number, since it uses less digits than its factorization.

21220210011110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719406.

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

Adding to 21220210011110 its reverse (1111001202212), we get a palindrome (22331211213322).

The spelling of 21220210011110 in words is "twenty-one trillion, two hundred twenty billion, two hundred ten million, eleven thousand, one hundred ten".