1220020111132 has 24 divisors (see below), whose sum is σ = 2184948412416. Its totient is φ = 595752529008.

The previous prime is 1220020111117. The next prime is 1220020111133. The reversal of 1220020111132 is 2311110200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020111133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033023 + ... + 1872745.

It is an arithmetic number, because the mean of its divisors is an integer number (91039517184).

Almost surely, 2^{1220020111132} is an apocalyptic number.

It is an amenable number.

1220020111132 is a deficient number, since it is larger than the sum of its proper divisors (964928301284).

1220020111132 is a wasteful number, since it uses less digits than its factorization.

1220020111132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848217 (or 848215 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1220020111132 its reverse (2311110200221), we get a palindrome (3531130311353).

The spelling of 1220020111132 in words is "one trillion, two hundred twenty billion, twenty million, one hundred eleven thousand, one hundred thirty-two".