1221232030302 has 32 divisors (see below), whose sum is σ = 2444753106432. Its totient is φ = 406695953664.

The previous prime is 1221232030297. The next prime is 1221232030303. The reversal of 1221232030302 is 2030302321221.

It is a happy number.

It is a super-2 number, since 2×1221232030302² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221232030303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58852693 + ... + 58873439.

It is an arithmetic number, because the mean of its divisors is an integer number (76398534576).

Almost surely, 2^{1221232030302} is an apocalyptic number.

1221232030302 is an abundant number, since it is smaller than the sum of its proper divisors (1223521076130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1221232030302 is a wasteful number, since it uses less digits than its factorization.

1221232030302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29472.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1221232030302 its reverse (2030302321221), we get a palindrome (3251534351523).

The spelling of 1221232030302 in words is "one trillion, two hundred twenty-one billion, two hundred thirty-two million, thirty thousand, three hundred two".