20210122101101 has 4 divisors (see below), whose sum is σ = 20210675490912. Its totient is φ = 20209568711292.

The previous prime is 20210122101089. The next prime is 20210122101109. The reversal of 20210122101101 is 10110122101202.

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 a de Polignac number, because none of the positive numbers 2^k-20210122101101 is a prime.

It is a super-2 number, since 2×20210122101101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210122101109) 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, 276640121 + ... + 276713166.

It is an arithmetic number, because the mean of its divisors is an integer number (5052668872728).

Almost surely, 2^{20210122101101} is an apocalyptic number.

It is an amenable number.

20210122101101 is a deficient number, since it is larger than the sum of its proper divisors (553389811).

20210122101101 is an equidigital number, since it uses as much as digits as its factorization.

20210122101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553389810.

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

Adding to 20210122101101 its reverse (10110122101202), we get a palindrome (30320244202303).

The spelling of 20210122101101 in words is "twenty trillion, two hundred ten billion, one hundred twenty-two million, one hundred one thousand, one hundred one".