10120021212011 has 4 divisors (see below), whose sum is σ = 10652653907400. Its totient is φ = 9587388516624.

The previous prime is 10120021211969. The next prime is 10120021212013. The reversal of 10120021212011 is 11021212002101.

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

It is a cyclic number.

It is not a de Polignac number, because 10120021212011 - 2¹⁸ = 10120020949867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10120021212013) 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, 266316347666 + ... + 266316347703.

It is an arithmetic number, because the mean of its divisors is an integer number (2663163476850).

Almost surely, 2^{10120021212011} is an apocalyptic number.

10120021212011 is a deficient number, since it is larger than the sum of its proper divisors (532632695389).

10120021212011 is an equidigital number, since it uses as much as digits as its factorization.

10120021212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532632695388.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10120021212011 its reverse (11021212002101), we get a palindrome (21141233214112).

The spelling of 10120021212011 in words is "ten trillion, one hundred twenty billion, twenty-one million, two hundred twelve thousand, eleven".