2100211021222 has 4 divisors (see below), whose sum is σ = 3150316531836. Its totient is φ = 1050105510610.

The previous prime is 2100211021217. The next prime is 2100211021301. The reversal of 2100211021222 is 2221201120012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2100211021222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100211021196 and 2100211021205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525052755304 + ... + 525052755307.

It is an arithmetic number, because the mean of its divisors is an integer number (787579132959).

Almost surely, 2^{2100211021222} is an apocalyptic number.

2100211021222 is a deficient number, since it is larger than the sum of its proper divisors (1050105510614).

2100211021222 is a wasteful number, since it uses less digits than its factorization.

2100211021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050105510613.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2100211021222 its reverse (2221201120012), we get a palindrome (4321412141234).

The spelling of 2100211021222 in words is "two trillion, one hundred billion, two hundred eleven million, twenty-one thousand, two hundred twenty-two".