4021222211100 has 108 divisors (see below), whose sum is σ = 12615728020896. Its totient is φ = 1071353468160.

The previous prime is 4021222211063. The next prime is 4021222211113. The reversal of 4021222211100 is 11122221204.

It is a super-3 number, since 3×4021222211100³ (a number of 39 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1032697 + ... + 3018096.

Almost surely, 2^{4021222211100} is an apocalyptic number.

It is an amenable number.

4021222211100 is an abundant number, since it is smaller than the sum of its proper divisors (8594505809796).

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

4021222211100 is a wasteful number, since it uses less digits than its factorization.

4021222211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051916 (or 4051906 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 4021222211100 its reverse (11122221204), we get a palindrome (4032344432304).

The spelling of 4021222211100 in words is "four trillion, twenty-one billion, two hundred twenty-two million, two hundred eleven thousand, one hundred".