1100021121010 has 64 divisors (see below), whose sum is σ = 2301644759040. Its totient is φ = 370747238400.

The previous prime is 1100021120981. The next prime is 1100021121103. The reversal of 1100021121010 is 101211200011.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 401410 + ... + 1536610.

It is an arithmetic number, because the mean of its divisors is an integer number (35963199360).

Almost surely, 2^{1100021121010} is an apocalyptic number.

1100021121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1100021121010 is an abundant number, since it is smaller than the sum of its proper divisors (1201623638030).

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

1100021121010 is a wasteful number, since it uses less digits than its factorization.

1100021121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135451.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1100021121010 its reverse (101211200011), we get a palindrome (1201232321021).

The spelling of 1100021121010 in words is "one trillion, one hundred billion, twenty-one million, one hundred twenty-one thousand, ten".