121002133401355 has 32 divisors (see below), whose sum is σ = 148706828342784. Its totient is φ = 94492118493696.

The previous prime is 121002133401353. The next prime is 121002133401361. The reversal of 121002133401355 is 553104331200121.

It is a cyclic number.

It is not a de Polignac number, because 121002133401355 - 2¹ = 121002133401353 is a prime.

It is a super-2 number, since 2×121002133401355² (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 (121002133401353) 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, 171775194 + ... + 172478176.

It is an arithmetic number, because the mean of its divisors is an integer number (4647088385712).

Almost surely, 2^{121002133401355} is an apocalyptic number.

121002133401355 is a deficient number, since it is larger than the sum of its proper divisors (27704694941429).

121002133401355 is a wasteful number, since it uses less digits than its factorization.

121002133401355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707715.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 121002133401355 its reverse (553104331200121), we get a palindrome (674106464601476).

The spelling of 121002133401355 in words is "one hundred twenty-one trillion, two billion, one hundred thirty-three million, four hundred one thousand, three hundred fifty-five".