2102200011021 has 16 divisors (see below), whose sum is σ = 3057770331648. Its totient is φ = 1274050254000.

The previous prime is 2102200011019. The next prime is 2102200011031. The reversal of 2102200011021 is 1201100022012.

It is not a de Polignac number, because 2102200011021 - 2¹ = 2102200011019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102200010988 and 2102200011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102200011031) 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, 6474096 + ... + 6791046.

It is an arithmetic number, because the mean of its divisors is an integer number (191110645728).

Almost surely, 2^{2102200011021} is an apocalyptic number.

It is an amenable number.

2102200011021 is a deficient number, since it is larger than the sum of its proper divisors (955570320627).

2102200011021 is a wasteful number, since it uses less digits than its factorization.

2102200011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517952.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2102200011021 its reverse (1201100022012), we get a palindrome (3303300033033).

The spelling of 2102200011021 in words is "two trillion, one hundred two billion, two hundred million, eleven thousand, twenty-one".