1221110301002 has 16 divisors (see below), whose sum is σ = 1947457837512. Its totient is φ = 572255738880.

The previous prime is 1221110300989. The next prime is 1221110301007. The reversal of 1221110301002 is 2001030111221.

It can be written as a sum of positive squares in 4 ways, for example, as 1161866254201 + 59244046801 = 1077899^2 + 243401^2 .

It is a super-2 number, since 2×1221110301002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1221110301007) 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, 74504273 + ... + 74520660.

Almost surely, 2^{1221110301002} is an apocalyptic number.

1221110301002 is a deficient number, since it is larger than the sum of its proper divisors (726347536510).

1221110301002 is a wasteful number, since it uses less digits than its factorization.

1221110301002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149025193.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1221110301002 its reverse (2001030111221), we get a palindrome (3222140412223).

The spelling of 1221110301002 in words is "one trillion, two hundred twenty-one billion, one hundred ten million, three hundred one thousand, two".