1021002210122 has 16 divisors (see below), whose sum is σ = 1533480869952. Its totient is φ = 509842196640.

The previous prime is 1021002210121. The next prime is 1021002210133. The reversal of 1021002210122 is 2210122001201.

It is a junction number, because it is equal to n+sod(n) for n = 1021002210097 and 1021002210106.

It is not an unprimeable number, because it can be changed into a prime (1021002210121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7590638 + ... + 7723974.

It is an arithmetic number, because the mean of its divisors is an integer number (95842554372).

Almost surely, 2^{1021002210122} is an apocalyptic number.

1021002210122 is a deficient number, since it is larger than the sum of its proper divisors (512478659830).

1021002210122 is a wasteful number, since it uses less digits than its factorization.

1021002210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138253.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021002210122 its reverse (2210122001201), we get a palindrome (3231124211323).

The spelling of 1021002210122 in words is "one trillion, twenty-one billion, two million, two hundred ten thousand, one hundred twenty-two".