32121121402 has 4 divisors (see below), whose sum is σ = 48181682106. Its totient is φ = 16060560700.

The previous prime is 32121121399. The next prime is 32121121447. The reversal of 32121121402 is 20412112123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28645901001 + 3475220401 = 169251^2 + 58951^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32121121402.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8030280349 + ... + 8030280352.

Almost surely, 2^32121121402 is an apocalyptic number.

32121121402 is a deficient number, since it is larger than the sum of its proper divisors (16060560704).

32121121402 is a wasteful number, since it uses less digits than its factorization.

32121121402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16060560703.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 32121121402 its reverse (20412112123), we get a palindrome (52533233525).

The spelling of 32121121402 in words is "thirty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, four hundred two".