20201223012122 has 16 divisors (see below), whose sum is σ = 30455437320000. Its totient is φ = 10049415013440.

The previous prime is 20201223012083. The next prime is 20201223012127. The reversal of 20201223012122 is 22121032210202.

It is a super-2 number, since 2×20201223012122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20201223012094 and 20201223012103.

It is not an unprimeable number, because it can be changed into a prime (20201223012127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8094722 + ... + 10292082.

It is an arithmetic number, because the mean of its divisors is an integer number (1903464832500).

Almost surely, 2^{20201223012122} is an apocalyptic number.

20201223012122 is a deficient number, since it is larger than the sum of its proper divisors (10254214307878).

20201223012122 is a wasteful number, since it uses less digits than its factorization.

20201223012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220661.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20201223012122 its reverse (22121032210202), we get a palindrome (42322255222324).

The spelling of 20201223012122 in words is "twenty trillion, two hundred one billion, two hundred twenty-three million, twelve thousand, one hundred twenty-two".