1221232102 has 8 divisors (see below), whose sum is σ = 1832005656. Its totient is φ = 610563552.

The previous prime is 1221232099. The next prime is 1221232123. The reversal of 1221232102 is 2012321221.

It is a happy number.

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

It is a congruent number.

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, 17233 + ... + 52339.

It is an arithmetic number, because the mean of its divisors is an integer number (229000707).

Almost surely, 2^1221232102 is an apocalyptic number.

1221232102 is a deficient number, since it is larger than the sum of its proper divisors (610773554).

1221232102 is a wasteful number, since it uses less digits than its factorization.

1221232102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52502.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1221232102 is about 34946.1314311041. The cubic root of 1221232102 is about 1068.8893188557.

Adding to 1221232102 its reverse (2012321221), we get a palindrome (3233553323).

The spelling of 1221232102 in words is "one billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred two".