121202110100210 has 8 divisors (see below), whose sum is σ = 218163798180396. Its totient is φ = 48480844040080.

The previous prime is 121202110100119. The next prime is 121202110100231. The reversal of 121202110100210 is 12001011202121.

It can be written as a sum of positive squares in 2 ways, for example, as 120577287831361 + 624822268849 = 10980769^2 + 790457^2 .

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, 6060105505001 + ... + 6060105505020.

Almost surely, 2^{121202110100210} is an apocalyptic number.

121202110100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121202110100210 is a deficient number, since it is larger than the sum of its proper divisors (96961688080186).

121202110100210 is a wasteful number, since it uses less digits than its factorization.

121202110100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12120211010028.

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

Adding to 121202110100210 its reverse (12001011202121), we get a palindrome (133203121302331).

The spelling of 121202110100210 in words is "one hundred twenty-one trillion, two hundred two billion, one hundred ten million, one hundred thousand, two hundred ten".