121012100210110 has 64 divisors (see below), whose sum is σ = 225155026391040. Its totient is φ = 46779530711040.

The previous prime is 121012100210087. The next prime is 121012100210129. The reversal of 121012100210110 is 11012001210121.

It is a happy number.

It is a super-2 number, since 2×121012100210110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 728716749 + ... + 728882791.

It is an arithmetic number, because the mean of its divisors is an integer number (3518047287360).

Almost surely, 2^{121012100210110} is an apocalyptic number.

121012100210110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012100210110 is a deficient number, since it is larger than the sum of its proper divisors (104142926180930).

121012100210110 is a wasteful number, since it uses less digits than its factorization.

121012100210110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169273.

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

Adding to 121012100210110 its reverse (11012001210121), we get a palindrome (132024101420231).

The spelling of 121012100210110 in words is "one hundred twenty-one trillion, twelve billion, one hundred million, two hundred ten thousand, one hundred ten".