121010 has 8 divisors (see below), whose sum is σ = 217836. Its totient is φ = 48400.

The previous prime is 121007. The next prime is 121013. The reversal of 121010 is 10121.

It is a happy number.

121010 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an interprime number because it is at equal distance from previous prime (121007) and next prime (121013).

It can be written as a sum of positive squares in 2 ways, for example, as 109561 + 11449 = 331^2 + 107^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to *n*+sod(*n*) for *n* = 120985 and 121003.

It is not an unprimeable number, because it can be changed into a prime (121013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6041 + ... + 6060.

2^{121010} is an apocalyptic number.

121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121010 is a deficient number, since it is larger than the sum of its proper divisors (96826).

121010 is a wasteful number, since it uses less digits than its factorization.

121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12108.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 121010 is about 347.8649163109. The cubic root of 121010 is about 49.4622369535.

Adding to 121010 its reverse (10121), we get a palindrome (131131).

Subtracting from 121010 its reverse (10121), we obtain a square (110889 = 333^{2}).

The spelling of 121010 in words is "one hundred twenty-one thousand, ten", and thus it is an iban number.

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