2221000102101 has 16 divisors (see below), whose sum is σ = 3231038154240. Its totient is φ = 1345855438320.

The previous prime is 2221000102091. The next prime is 2221000102133. The reversal of 2221000102101 is 1012010001222.

It is not a de Polignac number, because 2221000102101 - 2⁶ = 2221000102037 is a prime.

It is a super-2 number, since 2×2221000102101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221000102171) 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, 4910881 + ... + 5344038.

It is an arithmetic number, because the mean of its divisors is an integer number (201939884640).

Almost surely, 2^{2221000102101} is an apocalyptic number.

It is an amenable number.

2221000102101 is a deficient number, since it is larger than the sum of its proper divisors (1010038052139).

2221000102101 is a wasteful number, since it uses less digits than its factorization.

2221000102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10261496.

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

Adding to 2221000102101 its reverse (1012010001222), we get a palindrome (3233010103323).

The spelling of 2221000102101 in words is "two trillion, two hundred twenty-one billion, one hundred two thousand, one hundred one".