1221001300030 has 16 divisors (see below), whose sum is σ = 2198034077904. Its totient is φ = 488349022720.

The previous prime is 1221001299971. The next prime is 1221001300037. The reversal of 1221001300030 is 300031001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221001300037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6337507 + ... + 6527326.

It is an arithmetic number, because the mean of its divisors is an integer number (137377129869).

Almost surely, 2^{1221001300030} is an apocalyptic number.

1221001300030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221001300030 is a deficient number, since it is larger than the sum of its proper divisors (977032777874).

1221001300030 is a wasteful number, since it uses less digits than its factorization.

1221001300030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12874331.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1221001300030 its reverse (300031001221), we get a palindrome (1521032301251).

The spelling of 1221001300030 in words is "one trillion, two hundred twenty-one billion, one million, three hundred thousand, thirty".