121213010 has 8 divisors (see below), whose sum is σ = 218183436. Its totient is φ = 48485200.

The previous prime is 121212979. The next prime is 121213021. The reversal of 121213010 is 10312121.

It can be written as a sum of positive squares in 2 ways, for example, as 114468601 + 6744409 = 10699^2 + 2597^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 121212982 and 121213000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6060641 + ... + 6060660.

Almost surely, 2^121213010 is an apocalyptic number.

121213010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121213010 is a deficient number, since it is larger than the sum of its proper divisors (96970426).

121213010 is a wasteful number, since it uses less digits than its factorization.

121213010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121308.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 121213010 is about 11009.6780152737. The cubic root of 121213010 is about 494.8988127692.

Adding to 121213010 its reverse (10312121), we get a palindrome (131525131).

The spelling of 121213010 in words is "one hundred twenty-one million, two hundred thirteen thousand, ten".