1020101121020 has 24 divisors (see below), whose sum is σ = 2142310480800. Its totient is φ = 408021757632.

The previous prime is 1020101120993. The next prime is 1020101121079. The reversal of 1020101121020 is 201211010201.

It is a junction number, because it is equal to n+sod(n) for n = 1020101120992 and 1020101121010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716375 + ... + 1597934.

It is an arithmetic number, because the mean of its divisors is an integer number (89262936700).

Almost surely, 2^{1020101121020} is an apocalyptic number.

1020101121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020101121020 is an abundant number, since it is smaller than the sum of its proper divisors (1122209359780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020101121020 is a wasteful number, since it uses less digits than its factorization.

1020101121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336357 (or 2336355 counting only the distinct ones).

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

Adding to 1020101121020 its reverse (201211010201), we get a palindrome (1221312131221).

The spelling of 1020101121020 in words is "one trillion, twenty billion, one hundred one million, one hundred twenty-one thousand, twenty".