1211110330020 has 24 divisors (see below), whose sum is σ = 3391108924224. Its totient is φ = 322962754656.

The previous prime is 1211110329943. The next prime is 1211110330103. The reversal of 1211110330020 is 200330111121.

It is a happy number.

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, 10092586024 + ... + 10092586143.

It is an arithmetic number, because the mean of its divisors is an integer number (141296205176).

Almost surely, 2^{1211110330020} is an apocalyptic number.

1211110330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211110330020 is an abundant number, since it is smaller than the sum of its proper divisors (2179998594204).

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

1211110330020 is a wasteful number, since it uses less digits than its factorization.

1211110330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20185172179 (or 20185172177 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1211110330020 its reverse (200330111121), we get a palindrome (1411440441141).

The spelling of 1211110330020 in words is "one trillion, two hundred eleven billion, one hundred ten million, three hundred thirty thousand, twenty".