1021021121210 has 32 divisors (see below), whose sum is σ = 1861678944000. Its totient is φ = 403113672000.

The previous prime is 1021021121189. The next prime is 1021021121273. The reversal of 1021021121210 is 121211201201.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2369516 + ... + 2767064.

It is an arithmetic number, because the mean of its divisors is an integer number (58177467000).

Almost surely, 2^{1021021121210} is an apocalyptic number.

1021021121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021021121210 is a deficient number, since it is larger than the sum of its proper divisors (840657822790).

1021021121210 is a wasteful number, since it uses less digits than its factorization.

1021021121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400886.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021021121210 its reverse (121211201201), we get a palindrome (1142232322411).

The spelling of 1021021121210 in words is "one trillion, twenty-one billion, twenty-one million, one hundred twenty-one thousand, two hundred ten".