1201111220110 has 16 divisors (see below), whose sum is σ = 2198644268400. Its totient is φ = 472301360896.

The previous prime is 1201111220039. The next prime is 1201111220137. The reversal of 1201111220110 is 110221111021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017890275 + ... + 1017891454.

It is an arithmetic number, because the mean of its divisors is an integer number (137415266775).

Almost surely, 2^{1201111220110} is an apocalyptic number.

1201111220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201111220110 is a deficient number, since it is larger than the sum of its proper divisors (997533048290).

1201111220110 is a wasteful number, since it uses less digits than its factorization.

1201111220110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035781795.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1201111220110 its reverse (110221111021), we get a palindrome (1311332331131).

The spelling of 1201111220110 in words is "one trillion, two hundred one billion, one hundred eleven million, two hundred twenty thousand, one hundred ten".