1211110022020 has 48 divisors (see below), whose sum is σ = 2548661915520. Its totient is φ = 483429438464.

The previous prime is 1211110021991. The next prime is 1211110022021. The reversal of 1211110022020 is 202200111121.

It is not an unprimeable number, because it can be changed into a prime (1211110022021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24418887 + ... + 24468433.

It is an arithmetic number, because the mean of its divisors is an integer number (53097123240).

Almost surely, 2^{1211110022020} is an apocalyptic number.

1211110022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211110022020 is an abundant number, since it is smaller than the sum of its proper divisors (1337551893500).

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

1211110022020 is a wasteful number, since it uses less digits than its factorization.

1211110022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52092 (or 52090 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1211110022020 its reverse (202200111121), we get a palindrome (1413310133141).

The spelling of 1211110022020 in words is "one trillion, two hundred eleven billion, one hundred ten million, twenty-two thousand, twenty".