1002121220110 has 32 divisors (see below), whose sum is σ = 1825917007680. Its totient is φ = 395946684672.

The previous prime is 1002121220059. The next prime is 1002121220119. The reversal of 1002121220110 is 110221212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002121220119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322647 + ... + 1452013.

It is an arithmetic number, because the mean of its divisors is an integer number (57059906490).

Almost surely, 2^{1002121220110} is an apocalyptic number.

1002121220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002121220110 is a deficient number, since it is larger than the sum of its proper divisors (823795787570).

1002121220110 is a wasteful number, since it uses less digits than its factorization.

1002121220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130460.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1002121220110 its reverse (110221212001), we get a palindrome (1112342432111).

The spelling of 1002121220110 in words is "one trillion, two billion, one hundred twenty-one million, two hundred twenty thousand, one hundred ten".