20221111020121 has 48 divisors (see below), whose sum is σ = 24240213345600. Its totient is φ = 16788996766080.

The previous prime is 20221111020113. The next prime is 20221111020137. The reversal of 20221111020121 is 12102011112202.

It is not a de Polignac number, because 20221111020121 - 2³ = 20221111020113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221111020095 and 20221111020104.

It is not an unprimeable number, because it can be changed into a prime (20221111020821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43303930 + ... + 43768396.

It is an arithmetic number, because the mean of its divisors is an integer number (505004444700).

Almost surely, 2^{20221111020121} is an apocalyptic number.

It is an amenable number.

20221111020121 is a deficient number, since it is larger than the sum of its proper divisors (4019102325479).

20221111020121 is a wasteful number, since it uses less digits than its factorization.

20221111020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465190 (or 465179 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20221111020121 its reverse (12102011112202), we get a palindrome (32323122132323).

The spelling of 20221111020121 in words is "twenty trillion, two hundred twenty-one billion, one hundred eleven million, twenty thousand, one hundred twenty-one".