1111021233020 has 24 divisors (see below), whose sum is σ = 2337026718768. Its totient is φ = 443669040000.

The previous prime is 1111021233019. The next prime is 1111021233061. The reversal of 1111021233020 is 203321201111.

It is a super-2 number, since 2×1111021233020² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111021233020.

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, 46203506 + ... + 46227545.

It is an arithmetic number, because the mean of its divisors is an integer number (97376113282).

Almost surely, 2^{1111021233020} is an apocalyptic number.

1111021233020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111021233020 is an abundant number, since it is smaller than the sum of its proper divisors (1226005485748).

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

1111021233020 is a wasteful number, since it uses less digits than its factorization.

1111021233020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92431661 (or 92431659 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1111021233020 its reverse (203321201111), we get a palindrome (1314342434131).

The spelling of 1111021233020 in words is "one trillion, one hundred eleven billion, twenty-one million, two hundred thirty-three thousand, twenty".