1021120020110 has 8 divisors (see below), whose sum is σ = 1838016036216. Its totient is φ = 408448008040.

The previous prime is 1021120020091. The next prime is 1021120020119. The reversal of 1021120020110 is 110200211201.

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

It is a junction number, because it is equal to n+sod(n) for n = 1021120020091 and 1021120020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021120020119) 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, 51056000996 + ... + 51056001015.

It is an arithmetic number, because the mean of its divisors is an integer number (229752004527).

Almost surely, 2^{1021120020110} is an apocalyptic number.

1021120020110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021120020110 is a deficient number, since it is larger than the sum of its proper divisors (816896016106).

1021120020110 is a wasteful number, since it uses less digits than its factorization.

1021120020110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102112002018.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021120020110 its reverse (110200211201), we get a palindrome (1131320231311).

The spelling of 1021120020110 in words is "one trillion, twenty-one billion, one hundred twenty million, twenty thousand, one hundred ten".