1211021030201 has 16 divisors (see below), whose sum is σ = 1263022295040. Its totient is φ = 1159708072320.

The previous prime is 1211021030137. The next prime is 1211021030203. The reversal of 1211021030201 is 1020301201121.

It is a cyclic number.

It is not a de Polignac number, because 1211021030201 - 2⁶ = 1211021030137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211021030203) 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, 12721541 + ... + 12816381.

It is an arithmetic number, because the mean of its divisors is an integer number (78938893440).

Almost surely, 2^{1211021030201} is an apocalyptic number.

It is an amenable number.

1211021030201 is a deficient number, since it is larger than the sum of its proper divisors (52001264839).

1211021030201 is a wasteful number, since it uses less digits than its factorization.

1211021030201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98464.

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

Adding to 1211021030201 its reverse (1020301201121), we get a palindrome (2231322231322).

The spelling of 1211021030201 in words is "one trillion, two hundred eleven billion, twenty-one million, thirty thousand, two hundred one".