22102001010101 has 4 divisors (see below), whose sum is σ = 22250336587500. Its totient is φ = 21953665432704.

The previous prime is 22102001010077. The next prime is 22102001010139. The reversal of 22102001010101 is 10101010020122.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2375833807876 + 19726167202225 = 1541374^2 + 4441415^2 .

It is a cyclic number.

It is not a de Polignac number, because 22102001010101 - 2²² = 22101996815797 is a prime.

It is a Duffinian number.

22102001010101 is a modest number, since divided by 1010101 gives 221020 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102001010701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74167788476 + ... + 74167788773.

It is an arithmetic number, because the mean of its divisors is an integer number (5562584146875).

Almost surely, 2^{22102001010101} is an apocalyptic number.

It is an amenable number.

22102001010101 is a deficient number, since it is larger than the sum of its proper divisors (148335577399).

22102001010101 is a wasteful number, since it uses less digits than its factorization.

22102001010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148335577398.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22102001010101 its reverse (10101010020122), we get a palindrome (32203011030223).

The spelling of 22102001010101 in words is "twenty-two trillion, one hundred two billion, one million, ten thousand, one hundred one".