1201221010110 has 64 divisors (see below), whose sum is σ = 3145207428864. Its totient is φ = 291187276800.

The previous prime is 1201221010081. The next prime is 1201221010139. The reversal of 1201221010110 is 110101221021.

It is an interprime number because it is at equal distance from previous prime (1201221010081) and next prime (1201221010139).

It is a congruent number.

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, 5758657 + ... + 5963603.

It is an arithmetic number, because the mean of its divisors is an integer number (49143866076).

Almost surely, 2^{1201221010110} is an apocalyptic number.

1201221010110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201221010110 is an abundant number, since it is smaller than the sum of its proper divisors (1943986418754).

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

1201221010110 is a wasteful number, since it uses less digits than its factorization.

1201221010110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222729.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201221010110 its reverse (110101221021), we get a palindrome (1311322231131).

The spelling of 1201221010110 in words is "one trillion, two hundred one billion, two hundred twenty-one million, ten thousand, one hundred ten".