10221120210122 has 4 divisors (see below), whose sum is σ = 15331680315186. Its totient is φ = 5110560105060.

The previous prime is 10221120210017. The next prime is 10221120210137. The reversal of 10221120210122 is 22101202112201.

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

It can be written as a sum of positive squares in only one way, i.e., 5825267046481 + 4395853163641 = 2413559^2 + 2096629^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10221120210122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555280052529 + ... + 2555280052532.

Almost surely, 2^{10221120210122} is an apocalyptic number.

10221120210122 is a deficient number, since it is larger than the sum of its proper divisors (5110560105064).

10221120210122 is an equidigital number, since it uses as much as digits as its factorization.

10221120210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110560105063.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10221120210122 its reverse (22101202112201), we get a palindrome (32322322322323).

The spelling of 10221120210122 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-two".