1021140251120 has 40 divisors (see below), whose sum is σ = 2589983002800. Its totient is φ = 371323727360.

The previous prime is 1021140251059. The next prime is 1021140251141. The reversal of 1021140251120 is 211520411201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1021140251120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1021140251092 and 1021140251101.

It is a congruent number.

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, 580192445 + ... + 580194204.

It is an arithmetic number, because the mean of its divisors is an integer number (64749575070).

Almost surely, 2^{1021140251120} is an apocalyptic number.

1021140251120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021140251120 is an abundant number, since it is smaller than the sum of its proper divisors (1568842751680).

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

1021140251120 is a wasteful number, since it uses less digits than its factorization.

1021140251120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160386673 (or 1160386667 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 1021140251120 its reverse (211520411201), we get a palindrome (1232660662321).

The spelling of 1021140251120 in words is "one trillion, twenty-one billion, one hundred forty million, two hundred fifty-one thousand, one hundred twenty".