111020222221000 has 128 divisors (see below), whose sum is σ = 270822688081920. Its totient is φ = 42550068000000.

The previous prime is 111020222220961. The next prime is 111020222221009. The reversal of 111020222221000 is 122222020111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111020222221009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14598196 + ... + 20860195.

It is an arithmetic number, because the mean of its divisors is an integer number (2115802250640).

Almost surely, 2^{111020222221000} is an apocalyptic number.

111020222221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111020222221000 is an abundant number, since it is smaller than the sum of its proper divisors (159802465860920).

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

111020222221000 is a wasteful number, since it uses less digits than its factorization.

111020222221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35458544 (or 35458530 counting only the distinct ones).

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

Adding to 111020222221000 its reverse (122222020111), we get a palindrome (111142444241111).

The spelling of 111020222221000 in words is "one hundred eleven trillion, twenty billion, two hundred twenty-two million, two hundred twenty-one thousand".