1220021141112 has 24 divisors (see below), whose sum is σ = 3304223924040. Its totient is φ = 406673713680.

The previous prime is 1220021141107. The next prime is 1220021141123. The reversal of 1220021141112 is 2111411200221.

1220021141112 is a `hidden beast` number, since 1 + 220 + 0 + 21 + 1 + 411 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8472368964 + ... + 8472369107.

It is an arithmetic number, because the mean of its divisors is an integer number (137675996835).

Almost surely, 2^{1220021141112} is an apocalyptic number.

1220021141112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220021141112 is an abundant number, since it is smaller than the sum of its proper divisors (2084202782928).

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

1220021141112 is a wasteful number, since it uses less digits than its factorization.

1220021141112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16944738083 (or 16944738076 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1220021141112 its reverse (2111411200221), we get a palindrome (3331432341333).

The spelling of 1220021141112 in words is "one trillion, two hundred twenty billion, twenty-one million, one hundred forty-one thousand, one hundred twelve".