1011021221110 has 16 divisors (see below), whose sum is σ = 1820282893776. Its totient is φ = 404309667168.

The previous prime is 1011021221081. The next prime is 1011021221179. The reversal of 1011021221110 is 111221201101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12309684 + ... + 12391543.

It is an arithmetic number, because the mean of its divisors is an integer number (113767680861).

Almost surely, 2^{1011021221110} is an apocalyptic number.

1011021221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011021221110 is a deficient number, since it is larger than the sum of its proper divisors (809261672666).

1011021221110 is a wasteful number, since it uses less digits than its factorization.

1011021221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24705327.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011021221110 its reverse (111221201101), we get a palindrome (1122242422211).

The spelling of 1011021221110 in words is "one trillion, eleven billion, twenty-one million, two hundred twenty-one thousand, one hundred ten".