10220012121 has 16 divisors (see below), whose sum is σ = 14873923008. Its totient is φ = 6190425600.

The previous prime is 10220012093. The next prime is 10220012137. The reversal of 10220012121 is 12121002201.

It is not a de Polignac number, because 10220012121 - 2⁷ = 10220011993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10220012097 and 10220012106.

It is not an unprimeable number, because it can be changed into a prime (10220012161) 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, 28500 + ... + 145781.

It is an arithmetic number, because the mean of its divisors is an integer number (929620188).

Almost surely, 2^10220012121 is an apocalyptic number.

10220012121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10220012121 is a deficient number, since it is larger than the sum of its proper divisors (4653910887).

10220012121 is a wasteful number, since it uses less digits than its factorization.

10220012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176072.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10220012121 its reverse (12121002201), we get a palindrome (22341014322).

The spelling of 10220012121 in words is "ten billion, two hundred twenty million, twelve thousand, one hundred twenty-one".