10121021211 has 16 divisors (see below), whose sum is σ = 15452013824. Its totient is φ = 5772376224.

The previous prime is 10121021149. The next prime is 10121021263. The reversal of 10121021211 is 11212012101.

It is not a de Polignac number, because 10121021211 - 2²⁶ = 10053912347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121021311) 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, 449776 + ... + 471741.

It is an arithmetic number, because the mean of its divisors is an integer number (965750864).

Almost surely, 2^10121021211 is an apocalyptic number.

10121021211 is a deficient number, since it is larger than the sum of its proper divisors (5330992613).

10121021211 is an equidigital number, since it uses as much as digits as its factorization.

10121021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922050.

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

Adding to 10121021211 its reverse (11212012101), we get a palindrome (21333033312).

The spelling of 10121021211 in words is "ten billion, one hundred twenty-one million, twenty-one thousand, two hundred eleven".