1012021211201 has 16 divisors (see below), whose sum is σ = 1358797711488. Its totient is φ = 727927344000.

The previous prime is 1012021211191. The next prime is 1012021211209. The reversal of 1012021211201 is 1021121202101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012021211201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012021211209) 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, 505504100 + ... + 505506101.

It is an arithmetic number, because the mean of its divisors is an integer number (84924856968).

Almost surely, 2^{1012021211201} is an apocalyptic number.

1012021211201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012021211201 is a deficient number, since it is larger than the sum of its proper divisors (346776500287).

1012021211201 is a wasteful number, since it uses less digits than its factorization.

1012021211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011010232.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1012021211201 its reverse (1021121202101), we get a palindrome (2033142413302).

The spelling of 1012021211201 in words is "one trillion, twelve billion, twenty-one million, two hundred eleven thousand, two hundred one".