121211102010101 has 8 divisors (see below), whose sum is σ = 121283312693760. Its totient is φ = 121138892833392.

The previous prime is 121211102010071. The next prime is 121211102010133. The reversal of 121211102010101 is 101010201112121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121211102010101 is a prime.

It is a super-2 number, since 2×121211102010101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211102010161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188734136 + ... + 189375278.

It is an arithmetic number, because the mean of its divisors is an integer number (15160414086720).

Almost surely, 2^{121211102010101} is an apocalyptic number.

It is an amenable number.

121211102010101 is a deficient number, since it is larger than the sum of its proper divisors (72210683659).

121211102010101 is a wasteful number, since it uses less digits than its factorization.

121211102010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753475.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121211102010101 its reverse (101010201112121), we get a palindrome (222221303122222).

The spelling of 121211102010101 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred two million, ten thousand, one hundred one".