20210212202011 has 32 divisors (see below), whose sum is σ = 23274915245568. Its totient is φ = 17383142246400.

The previous prime is 20210212201999. The next prime is 20210212202017. The reversal of 20210212202011 is 11020221201202.

It is a happy number.

It is not a de Polignac number, because 20210212202011 - 2⁹ = 20210212201499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210212202017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 497804965 + ... + 497845561.

It is an arithmetic number, because the mean of its divisors is an integer number (727341101424).

Almost surely, 2^{20210212202011} is an apocalyptic number.

20210212202011 is a deficient number, since it is larger than the sum of its proper divisors (3064703043557).

20210212202011 is a wasteful number, since it uses less digits than its factorization.

20210212202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63031.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20210212202011 its reverse (11020221201202), we get a palindrome (31230433403213).

The spelling of 20210212202011 in words is "twenty trillion, two hundred ten billion, two hundred twelve million, two hundred two thousand, eleven".