1210212020201 has 4 divisors (see below), whose sum is σ = 1230724088400. Its totient is φ = 1189699952004.

The previous prime is 1210212020161. The next prime is 1210212020219. The reversal of 1210212020201 is 1020202120121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210212020201 is a prime.

It is a super-2 number, since 2×1210212020201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210212020401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10256034011 + ... + 10256034128.

It is an arithmetic number, because the mean of its divisors is an integer number (307681022100).

Almost surely, 2^{1210212020201} is an apocalyptic number.

It is an amenable number.

1210212020201 is a deficient number, since it is larger than the sum of its proper divisors (20512068199).

1210212020201 is an equidigital number, since it uses as much as digits as its factorization.

1210212020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20512068198.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1210212020201 its reverse (1020202120121), we get a palindrome (2230414140322).

The spelling of 1210212020201 in words is "one trillion, two hundred ten billion, two hundred twelve million, twenty thousand, two hundred one".