1021111120010 has 16 divisors (see below), whose sum is σ = 1838372697576. Its totient is φ = 408361629888.

The previous prime is 1021111119979. The next prime is 1021111120027. The reversal of 1021111120010 is 100211111201.

It can be written as a sum of positive squares in 4 ways, for example, as 789718372921 + 231392747089 = 888661^2 + 481033^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1021111119973 and 1021111120000.

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, 10300469 + ... + 10399128.

Almost surely, 2^{1021111120010} is an apocalyptic number.

1021111120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021111120010 is a deficient number, since it is larger than the sum of its proper divisors (817261577566).

1021111120010 is a wasteful number, since it uses less digits than its factorization.

1021111120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20704537.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1021111120010 its reverse (100211111201), we get a palindrome (1121322231211).

The spelling of 1021111120010 in words is "one trillion, twenty-one billion, one hundred eleven million, one hundred twenty thousand, ten".