1021001011210 has 16 divisors (see below), whose sum is σ = 1842187989600. Its totient is φ = 407425700176.

The previous prime is 1021001011183. The next prime is 1021001011223. The reversal of 1021001011210 is 121101001201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121833640 + ... + 121842019.

It is an arithmetic number, because the mean of its divisors is an integer number (115136749350).

Almost surely, 2^{1021001011210} is an apocalyptic number.

1021001011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021001011210 is a deficient number, since it is larger than the sum of its proper divisors (821186978390).

1021001011210 is a wasteful number, since it uses less digits than its factorization.

1021001011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243676085.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1021001011210 its reverse (121101001201), we get a palindrome (1142102012411).

The spelling of 1021001011210 in words is "one trillion, twenty-one billion, one million, eleven thousand, two hundred ten".