1021201210003 has 16 divisors (see below), whose sum is σ = 1103792548320. Its totient is φ = 939187563264.

The previous prime is 1021201209989. The next prime is 1021201210019. The reversal of 1021201210003 is 3000121021201.

It is a cyclic number.

It is not a de Polignac number, because 1021201210003 - 2²⁹ = 1020664339091 is a prime.

It is a super-2 number, since 2×1021201210003² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021201210103) 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, 36161493 + ... + 36189721.

It is an arithmetic number, because the mean of its divisors is an integer number (68987034270).

Almost surely, 2^{1021201210003} is an apocalyptic number.

1021201210003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1021201210003 is a deficient number, since it is larger than the sum of its proper divisors (82591338317).

1021201210003 is a wasteful number, since it uses less digits than its factorization.

1021201210003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38358.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1021201210003 its reverse (3000121021201), we get a palindrome (4021322231204).

The spelling of 1021201210003 in words is "one trillion, twenty-one billion, two hundred one million, two hundred ten thousand, three".