121504021402 has 8 divisors (see below), whose sum is σ = 182261280096. Its totient is φ = 60750261372.

The previous prime is 121504021363. The next prime is 121504021421. The reversal of 121504021402 is 204120405121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786048 + ... + 927835.

It is an arithmetic number, because the mean of its divisors is an integer number (22782660012).

Almost surely, 2^121504021402 is an apocalyptic number.

121504021402 is a deficient number, since it is larger than the sum of its proper divisors (60757258694).

121504021402 is a wasteful number, since it uses less digits than its factorization.

121504021402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749332.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 121504021402 its reverse (204120405121), we get a palindrome (325624426523).

The spelling of 121504021402 in words is "one hundred twenty-one billion, five hundred four million, twenty-one thousand, four hundred two".