1021021210122 has 8 divisors (see below), whose sum is σ = 2042042420256. Its totient is φ = 340340403372.

The previous prime is 1021021210073. The next prime is 1021021210123. The reversal of 1021021210122 is 2210121201201.

It is a sphenic number, since it is the product of 3 distinct primes.

1021021210122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1021021210123) 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, 85085100838 + ... + 85085100849.

It is an arithmetic number, because the mean of its divisors is an integer number (255255302532).

Almost surely, 2^{1021021210122} is an apocalyptic number.

1021021210122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021021210122 is a wasteful number, since it uses less digits than its factorization.

1021021210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170170201692.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1021021210122 its reverse (2210121201201), we get a palindrome (3231142411323).

The spelling of 1021021210122 in words is "one trillion, twenty-one billion, twenty-one million, two hundred ten thousand, one hundred twenty-two".