1210220110 has 16 divisors (see below), whose sum is σ = 2376432432. Its totient is φ = 440080000.

The previous prime is 1210220107. The next prime is 1210220111. The reversal of 1210220110 is 110220121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210220111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5500891 + ... + 5501110.

It is an arithmetic number, because the mean of its divisors is an integer number (148527027).

Almost surely, 2^1210220110 is an apocalyptic number.

1210220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210220110 is a deficient number, since it is larger than the sum of its proper divisors (1166212322).

1210220110 is a wasteful number, since it uses less digits than its factorization.

1210220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11002019.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1210220110 is about 34788.2179767806. The cubic root of 1210220110 is about 1065.6668470938. Note that the first 3 decimals are identical.

Adding to 1210220110 its reverse (110220121), we get a palindrome (1320440231).

The spelling of 1210220110 in words is "one billion, two hundred ten million, two hundred twenty thousand, one hundred ten".