10221221020222 has 4 divisors (see below), whose sum is σ = 15331831530336. Its totient is φ = 5110610510110.

The previous prime is 10221221020139. The next prime is 10221221020243. The reversal of 10221221020222 is 22202012212201.

10221221020222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10221221020222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555305255054 + ... + 2555305255057.

It is an arithmetic number, because the mean of its divisors is an integer number (3832957882584).

Almost surely, 2^{10221221020222} is an apocalyptic number.

10221221020222 is a deficient number, since it is larger than the sum of its proper divisors (5110610510114).

10221221020222 is an equidigital number, since it uses as much as digits as its factorization.

10221221020222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110610510113.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10221221020222 its reverse (22202012212201), we get a palindrome (32423233232423).

The spelling of 10221221020222 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, twenty thousand, two hundred twenty-two".