10212222404021 has 4 divisors (see below), whose sum is σ = 11140606258944. Its totient is φ = 9283838549100.

The previous prime is 10212222404017. The next prime is 10212222404023. The reversal of 10212222404021 is 12040422221201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10212222404021 - 2² = 10212222404017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212222404023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464191927445 + ... + 464191927466.

It is an arithmetic number, because the mean of its divisors is an integer number (2785151564736).

Almost surely, 2^{10212222404021} is an apocalyptic number.

10212222404021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10212222404021 is a deficient number, since it is larger than the sum of its proper divisors (928383854923).

10212222404021 is an equidigital number, since it uses as much as digits as its factorization.

10212222404021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928383854922.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 10212222404021 its reverse (12040422221201), we get a palindrome (22252644625222).

It can be divided in two parts, 1021222 and 2404021, that added together give a palindrome (3425243).

The spelling of 10212222404021 in words is "ten trillion, two hundred twelve billion, two hundred twenty-two million, four hundred four thousand, twenty-one".