1121202022020 has 24 divisors (see below), whose sum is σ = 3139365661824. Its totient is φ = 298987205856.

The previous prime is 1121202022007. The next prime is 1121202022033. The reversal of 1121202022020 is 202202021211.

It is an interprime number because it is at equal distance from previous prime (1121202022007) and next prime (1121202022033).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 9343350124 + ... + 9343350243.

It is an arithmetic number, because the mean of its divisors is an integer number (130806902576).

Almost surely, 2^{1121202022020} is an apocalyptic number.

1121202022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121202022020 is an abundant number, since it is smaller than the sum of its proper divisors (2018163639804).

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

1121202022020 is a wasteful number, since it uses less digits than its factorization.

1121202022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18686700379 (or 18686700377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1121202022020 its reverse (202202021211), we get a palindrome (1323404043231).

The spelling of 1121202022020 in words is "one trillion, one hundred twenty-one billion, two hundred two million, twenty-two thousand, twenty".