1210211021201 has 16 divisors (see below), whose sum is σ = 1554250946304. Its totient is φ = 915897875904.

The previous prime is 1210211021177. The next prime is 1210211021209. The reversal of 1210211021201 is 1021201120121.

It is a cyclic number.

It is not a de Polignac number, because 1210211021201 - 2⁶ = 1210211021137 is a prime.

It is a super-2 number, since 2×1210211021201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210211021209) 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, 289107086 + ... + 289111271.

It is an arithmetic number, because the mean of its divisors is an integer number (97140684144).

Almost surely, 2^{1210211021201} is an apocalyptic number.

It is an amenable number.

1210211021201 is a deficient number, since it is larger than the sum of its proper divisors (344039925103).

1210211021201 is a wasteful number, since it uses less digits than its factorization.

1210211021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578218400.

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

Adding to 1210211021201 its reverse (1021201120121), we get a palindrome (2231412141322).

The spelling of 1210211021201 in words is "one trillion, two hundred ten billion, two hundred eleven million, twenty-one thousand, two hundred one".