10112121222021 has 80 divisors (see below), whose sum is σ = 18906820732800. Its totient is φ = 5243461402752.

The previous prime is 10112121222019. The next prime is 10112121222059. The reversal of 10112121222021 is 12022212121101.

It is not a de Polignac number, because 10112121222021 - 2¹ = 10112121222019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10112121221985 and 10112121222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112121222011) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 11191206 + ... + 12060983.

It is an arithmetic number, because the mean of its divisors is an integer number (236335259160).

Almost surely, 2^{10112121222021} is an apocalyptic number.

It is an amenable number.

10112121222021 is a deficient number, since it is larger than the sum of its proper divisors (8794699510779).

10112121222021 is a wasteful number, since it uses less digits than its factorization.

10112121222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23252280 (or 23252271 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 10112121222021 its reverse (12022212121101), we get a palindrome (22134333343122).

The spelling of 10112121222021 in words is "ten trillion, one hundred twelve billion, one hundred twenty-one million, two hundred twenty-two thousand, twenty-one".