1120212020221 has 16 divisors (see below), whose sum is σ = 1293028155648. Its totient is φ = 950593968000.

The previous prime is 1120212020203. The next prime is 1120212020231. The reversal of 1120212020221 is 1220202120211.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120212020221 is a prime.

It is a super-2 number, since 2×1120212020221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120212020195 and 1120212020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120212020231) 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, 9117961 + ... + 9240001.

It is an arithmetic number, because the mean of its divisors is an integer number (80814259728).

Almost surely, 2^{1120212020221} is an apocalyptic number.

It is an amenable number.

1120212020221 is a deficient number, since it is larger than the sum of its proper divisors (172816135427).

1120212020221 is a wasteful number, since it uses less digits than its factorization.

1120212020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135132.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1120212020221 its reverse (1220202120211), we get a palindrome (2340414140432).

The spelling of 1120212020221 in words is "one trillion, one hundred twenty billion, two hundred twelve million, twenty thousand, two hundred twenty-one".