1502001221111 has 4 divisors (see below), whose sum is σ = 1502027469000. Its totient is φ = 1501974973224.

The previous prime is 1502001221069. The next prime is 1502001221113. The reversal of 1502001221111 is 1111221002051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1502001221111 - 2⁶ = 1502001221047 is a prime.

It is a super-2 number, since 2×1502001221111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1502001221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1502001221113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13037921 + ... + 13152618.

It is an arithmetic number, because the mean of its divisors is an integer number (375506867250).

Almost surely, 2^{1502001221111} is an apocalyptic number.

1502001221111 is a deficient number, since it is larger than the sum of its proper divisors (26247889).

1502001221111 is an equidigital number, since it uses as much as digits as its factorization.

1502001221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26247888.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 1502001221111 its reverse (1111221002051), we get a palindrome (2613222223162).

The spelling of 1502001221111 in words is "one trillion, five hundred two billion, one million, two hundred twenty-one thousand, one hundred eleven".