10210121211 has 4 divisors (see below), whose sum is σ = 13613494952. Its totient is φ = 6806747472.

The previous prime is 10210121203. The next prime is 10210121213. The reversal of 10210121211 is 11212101201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10210121211 - 2³ = 10210121203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10210121213) 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, 1701686866 + ... + 1701686871.

It is an arithmetic number, because the mean of its divisors is an integer number (3403373738).

Almost surely, 2^10210121211 is an apocalyptic number.

10210121211 is a deficient number, since it is larger than the sum of its proper divisors (3403373741).

10210121211 is an equidigital number, since it uses as much as digits as its factorization.

10210121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403373740.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10210121211 its reverse (11212101201), we get a palindrome (21422222412).

The spelling of 10210121211 in words is "ten billion, two hundred ten million, one hundred twenty-one thousand, two hundred eleven".