10021210122122 has 4 divisors (see below), whose sum is σ = 15031815183186. Its totient is φ = 5010605061060.

The previous prime is 10021210122101. The next prime is 10021210122139. The reversal of 10021210122122 is 22122101212001.

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., 5064259652881 + 4956950469241 = 2250391^2 + 2226421^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10021210122122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2505302530529 + ... + 2505302530532.

Almost surely, 2^{10021210122122} is an apocalyptic number.

10021210122122 is a deficient number, since it is larger than the sum of its proper divisors (5010605061064).

10021210122122 is an equidigital number, since it uses as much as digits as its factorization.

10021210122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010605061063.

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

Adding to 10021210122122 its reverse (22122101212001), we get a palindrome (32143311334123).

The spelling of 10021210122122 in words is "ten trillion, twenty-one billion, two hundred ten million, one hundred twenty-two thousand, one hundred twenty-two".