20021022201101 has 16 divisors (see below), whose sum is σ = 20721629123328. Its totient is φ = 19330540876800.

The previous prime is 20021022201091. The next prime is 20021022201107. The reversal of 20021022201101 is 10110222012002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20021022201101 is a prime.

It is a super-2 number, since 2×20021022201101² (a number of 27 digits) contains 22 as substring.

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 (20021022201107) 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, 111707906 + ... + 111886988.

It is an arithmetic number, because the mean of its divisors is an integer number (1295101820208).

Almost surely, 2^{20021022201101} is an apocalyptic number.

It is an amenable number.

20021022201101 is a deficient number, since it is larger than the sum of its proper divisors (700606922227).

20021022201101 is a wasteful number, since it uses less digits than its factorization.

20021022201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207332.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021022201101 its reverse (10110222012002), we get a palindrome (30131244213103).

The spelling of 20021022201101 in words is "twenty trillion, twenty-one billion, twenty-two million, two hundred one thousand, one hundred one".