121722632 has 8 divisors (see below), whose sum is σ = 228229950. Its totient is φ = 60861312.

The previous prime is 121722617. The next prime is 121722659. The reversal of 121722632 is 236227121.

It can be written as a sum of positive squares in only one way, i.e., 63138916 + 58583716 = 7946^2 + 7654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7607657 + ... + 7607672.

Almost surely, 2^121722632 is an apocalyptic number.

It is an amenable number.

121722632 is a deficient number, since it is larger than the sum of its proper divisors (106507318).

121722632 is a wasteful number, since it uses less digits than its factorization.

121722632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15215335 (or 15215331 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 121722632 is about 11032.7980131968. The cubic root of 121722632 is about 495.5914190729.

Adding to 121722632 its reverse (236227121), we get a palindrome (357949753).

The spelling of 121722632 in words is "one hundred twenty-one million, seven hundred twenty-two thousand, six hundred thirty-two".