1210220110000 has 100 divisors (see below), whose sum is σ = 3196433645064. Its totient is φ = 440080000000.

The previous prime is 1210220109991. The next prime is 1210220110009. The reversal of 1210220110000 is 110220121.

It is an interprime number because it is at equal distance from previous prime (1210220109991) and next prime (1210220110009).

It is a tau number, because it is divible by the number of its divisors (100).

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

It is not an unprimeable number, because it can be changed into a prime (1210220110009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5391001 + ... + 5611000.

Almost surely, 2^{1210220110000} is an apocalyptic number.

1210220110000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210220110000 is an abundant number, since it is smaller than the sum of its proper divisors (1986213535064).

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

1210220110000 is a wasteful number, since it uses less digits than its factorization.

1210220110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002040 (or 11002019 counting only the distinct ones).

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

Adding to 1210220110000 its reverse (110220121), we get a palindrome (1210330330121).

It can be divided in two parts, 12102 and 20110000, that added together give a palindrome (20122102).

The spelling of 1210220110000 in words is "one trillion, two hundred ten billion, two hundred twenty million, one hundred ten thousand".