210212112121011 has 384 divisors, whose sum is σ = 423131341860864. Its totient is φ = 97040941608960.

The previous prime is 210212112120979. The next prime is 210212112121019. The reversal of 210212112121011 is 110121211212012.

It is a happy number.

210212112121011 is a `hidden beast` number, since 210 + 2 + 1 + 211 + 21 + 210 + 11 = 666.

It is not a de Polignac number, because 210212112121011 - 2⁵ = 210212112120979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210212112121019) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 59499605401 + ... + 59499608933.

It is an arithmetic number, because the mean of its divisors is an integer number (1101904536096).

Almost surely, 2^{210212112121011} is an apocalyptic number.

210212112121011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

210212112121011 is an abundant number, since it is smaller than the sum of its proper divisors (212919229739853).

210212112121011 is a wasteful number, since it uses less digits than its factorization.

210212112121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443 (or 5440 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 210212112121011 its reverse (110121211212012), we get a palindrome (320333323333023).

The spelling of 210212112121011 in words is "two hundred ten trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty-one thousand, eleven".