1021120111010 has 16 divisors (see below), whose sum is σ = 1838077642872. Its totient is φ = 408434390400.

The previous prime is 1021120110973. The next prime is 1021120111013. The reversal of 1021120111010 is 101110211201.

1021120111010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 506427219769 + 514692891241 = 711637^2 + 717421^2 .

It is a super-2 number, since 2×1021120111010² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021120110982 and 1021120111000.

It is not an unprimeable number, because it can be changed into a prime (1021120111013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1389851 + ... + 1993470.

Almost surely, 2^{1021120111010} is an apocalyptic number.

1021120111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021120111010 is a deficient number, since it is larger than the sum of its proper divisors (816957531862).

1021120111010 is a wasteful number, since it uses less digits than its factorization.

1021120111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3413509.

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

Adding to 1021120111010 its reverse (101110211201), we get a palindrome (1122230322211).

The spelling of 1021120111010 in words is "one trillion, twenty-one billion, one hundred twenty million, one hundred eleven thousand, ten".