10210222001221 has 4 divisors (see below), whose sum is σ = 11138424001344. Its totient is φ = 9282020001100.

The previous prime is 10210222001219. The next prime is 10210222001233. The reversal of 10210222001221 is 12210022201201.

It is a happy number.

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 not a de Polignac number, because 10210222001221 - 2¹ = 10210222001219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210222001195 and 10210222001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210222011221) 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, 464101000045 + ... + 464101000066.

It is an arithmetic number, because the mean of its divisors is an integer number (2784606000336).

Almost surely, 2^{10210222001221} is an apocalyptic number.

10210222001221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10210222001221 is a deficient number, since it is larger than the sum of its proper divisors (928202000123).

10210222001221 is an equidigital number, since it uses as much as digits as its factorization.

10210222001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928202000122.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10210222001221 its reverse (12210022201201), we get a palindrome (22420244202422).

The spelling of 10210222001221 in words is "ten trillion, two hundred ten billion, two hundred twenty-two million, one thousand, two hundred twenty-one".