121321020001330 has 16 divisors (see below), whose sum is σ = 218378078754264. Its totient is φ = 48528354055680.

The previous prime is 121321020001303. The next prime is 121321020001361. The reversal of 121321020001330 is 33100020123121.

It can be written as a sum of positive squares in 4 ways, for example, as 118008266911921 + 3312753089409 = 10863161^2 + 1820097^2 .

It is a super-2 number, since 2×121321020001330² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121321020001298 and 121321020001307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3434050 + ... + 15951010.

Almost surely, 2^{121321020001330} is an apocalyptic number.

121321020001330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121321020001330 is a deficient number, since it is larger than the sum of its proper divisors (97057058752934).

121321020001330 is a wasteful number, since it uses less digits than its factorization.

121321020001330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13486221.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 121321020001330 its reverse (33100020123121), we get a palindrome (154421040124451).

The spelling of 121321020001330 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, twenty million, one thousand, three hundred thirty".