22021001112101 has 4 divisors (see below), whose sum is σ = 22166835556704. Its totient is φ = 21875166667500.

The previous prime is 22021001111981. The next prime is 22021001112107. The reversal of 22021001112101 is 10121110012022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22021001112101 - 2¹⁰ = 22021001111077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021001112107) 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, 72917222075 + ... + 72917222376.

It is an arithmetic number, because the mean of its divisors is an integer number (5541708889176).

Almost surely, 2^{22021001112101} is an apocalyptic number.

It is an amenable number.

22021001112101 is a deficient number, since it is larger than the sum of its proper divisors (145834444603).

22021001112101 is a wasteful number, since it uses less digits than its factorization.

22021001112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145834444602.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22021001112101 its reverse (10121110012022), we get a palindrome (32142111124123).

The spelling of 22021001112101 in words is "twenty-two trillion, twenty-one billion, one million, one hundred twelve thousand, one hundred one".