121101002221021 has 16 divisors (see below), whose sum is σ = 121365655976448. Its totient is φ = 120836715630400.

The previous prime is 121101002220949. The next prime is 121101002221027. The reversal of 121101002221021 is 120122200101121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121101002221021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121101002220986 and 121101002221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101002221027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3351702126 + ... + 3351738256.

It is an arithmetic number, because the mean of its divisors is an integer number (7585353498528).

Almost surely, 2^{121101002221021} is an apocalyptic number.

It is an amenable number.

121101002221021 is a deficient number, since it is larger than the sum of its proper divisors (264653755427).

121101002221021 is a wasteful number, since it uses less digits than its factorization.

121101002221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41012.

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

Adding to 121101002221021 its reverse (120122200101121), we get a palindrome (241223202322142).

The spelling of 121101002221021 in words is "one hundred twenty-one trillion, one hundred one billion, two million, two hundred twenty-one thousand, twenty-one".