121201120202221 has 8 divisors (see below), whose sum is σ = 124236477598464. Its totient is φ = 118169535782880.

The previous prime is 121201120202219. The next prime is 121201120202231. The reversal of 121201120202221 is 122202021102121.

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

It is a cyclic number.

It is not a de Polignac number, because 121201120202221 - 2¹ = 121201120202219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201120202231) 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, 943179175 + ... + 943307668.

It is an arithmetic number, because the mean of its divisors is an integer number (15529559699808).

Almost surely, 2^{121201120202221} is an apocalyptic number.

It is an amenable number.

121201120202221 is a deficient number, since it is larger than the sum of its proper divisors (3035357396243).

121201120202221 is a wasteful number, since it uses less digits than its factorization.

121201120202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886488451.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121201120202221 its reverse (122202021102121), we get a palindrome (243403141304342).

The spelling of 121201120202221 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty million, two hundred two thousand, two hundred twenty-one".