2100220021123 has 8 divisors (see below), whose sum is σ = 2409590954592. Its totient is φ = 1793183963136.

The previous prime is 2100220021117. The next prime is 2100220021153. The reversal of 2100220021123 is 3211200220012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100220021123 - 2³³ = 2091630086531 is a prime.

It is a super-3 number, since 3×2100220021123³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100220021097 and 2100220021106.

It is not an unprimeable number, because it can be changed into a prime (2100220021153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583716940 + ... + 583720537.

It is an arithmetic number, because the mean of its divisors is an integer number (301198869324).

Almost surely, 2^{2100220021123} is an apocalyptic number.

2100220021123 is a deficient number, since it is larger than the sum of its proper divisors (309370933469).

2100220021123 is a wasteful number, since it uses less digits than its factorization.

2100220021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167437741.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2100220021123 its reverse (3211200220012), we get a palindrome (5311420241135).

The spelling of 2100220021123 in words is "two trillion, one hundred billion, two hundred twenty million, twenty-one thousand, one hundred twenty-three".