121211100002210 has 8 divisors (see below), whose sum is σ = 218179980003996. Its totient is φ = 48484440000880.

The previous prime is 121211100002189. The next prime is 121211100002249. The reversal of 121211100002210 is 12200001112121.

It can be written as a sum of positive squares in 2 ways, for example, as 113707395776689 + 7503704225521 = 10663367^2 + 2739289^2 .

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

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, 6060555000101 + ... + 6060555000120.

Almost surely, 2^{121211100002210} is an apocalyptic number.

121211100002210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121211100002210 is a deficient number, since it is larger than the sum of its proper divisors (96968880001786).

121211100002210 is a wasteful number, since it uses less digits than its factorization.

121211100002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121110000228.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121211100002210 its reverse (12200001112121), we get a palindrome (133411101114331).

The spelling of 121211100002210 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred million, two thousand, two hundred ten".