10012021012221 has 8 divisors (see below), whose sum is σ = 13387178238720. Its totient is φ = 6655772230272.

The previous prime is 10012021012193. The next prime is 10012021012249. The reversal of 10012021012221 is 12221012021001.

It is an interprime number because it is at equal distance from previous prime (10012021012193) and next prime (10012021012249).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10012021012221 - 2¹⁹ = 10012020487933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10012021012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012021112221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4727109901 + ... + 4727112018.

It is an arithmetic number, because the mean of its divisors is an integer number (1673397279840).

Almost surely, 2^{10012021012221} is an apocalyptic number.

It is an amenable number.

10012021012221 is a deficient number, since it is larger than the sum of its proper divisors (3375157226499).

10012021012221 is an equidigital number, since it uses as much as digits as its factorization.

10012021012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9454222275.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10012021012221 its reverse (12221012021001), we get a palindrome (22233033033222).

The spelling of 10012021012221 in words is "ten trillion, twelve billion, twenty-one million, twelve thousand, two hundred twenty-one".