10020021220121 has 32 divisors (see below), whose sum is σ = 11446222233600. Its totient is φ = 8682496289280.

The previous prime is 10020021220093. The next prime is 10020021220171. The reversal of 10020021220121 is 12102212002001.

It is not a de Polignac number, because 10020021220121 - 2¹⁰ = 10020021219097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10020021220096 and 10020021220105.

It is not an unprimeable number, because it can be changed into a prime (10020021220171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360301865 + ... + 360329673.

It is an arithmetic number, because the mean of its divisors is an integer number (357694444800).

Almost surely, 2^{10020021220121} is an apocalyptic number.

10020021220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10020021220121 is a deficient number, since it is larger than the sum of its proper divisors (1426201013479).

10020021220121 is a wasteful number, since it uses less digits than its factorization.

10020021220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32789.

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

Adding to 10020021220121 its reverse (12102212002001), we get a palindrome (22122233222122).

The spelling of 10020021220121 in words is "ten trillion, twenty billion, twenty-one million, two hundred twenty thousand, one hundred twenty-one".