1100021221010 has 64 divisors (see below), whose sum is σ = 2027379939840. Its totient is φ = 429538049280.

The previous prime is 1100021220997. The next prime is 1100021221043. The reversal of 1100021221010 is 101221200011.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1100021220982 and 1100021221000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430198652 + ... + 430201208.

It is an arithmetic number, because the mean of its divisors is an integer number (31677811560).

Almost surely, 2^{1100021221010} is an apocalyptic number.

1100021221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1100021221010 is a deficient number, since it is larger than the sum of its proper divisors (927358718830).

1100021221010 is a wasteful number, since it uses less digits than its factorization.

1100021221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4611.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1100021221010 its reverse (101221200011), we get a palindrome (1201242421021).

The spelling of 1100021221010 in words is "one trillion, one hundred billion, twenty-one million, two hundred twenty-one thousand, ten".