121021200210211 has 32 divisors (see below), whose sum is σ = 147008828195840. Its totient is φ = 97314826512384.

The previous prime is 121021200210203. The next prime is 121021200210269. The reversal of 121021200210211 is 112012002120121.

It is not a de Polignac number, because 121021200210211 - 2³ = 121021200210203 is a prime.

It is a super-2 number, since 2×121021200210211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121021200210271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367420651 + ... + 367749883.

It is an arithmetic number, because the mean of its divisors is an integer number (4594025881120).

Almost surely, 2^{121021200210211} is an apocalyptic number.

121021200210211 is a deficient number, since it is larger than the sum of its proper divisors (25987627985629).

121021200210211 is a wasteful number, since it uses less digits than its factorization.

121021200210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356195.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121021200210211 its reverse (112012002120121), we get a palindrome (233033202330332).

The spelling of 121021200210211 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred million, two hundred ten thousand, two hundred eleven".