10101221011211 has 16 divisors (see below), whose sum is σ = 11038074471648. Its totient is φ = 9167465299200.

The previous prime is 10101221011153. The next prime is 10101221011213. The reversal of 10101221011211 is 11211012210101.

It is a cyclic number.

It is not a de Polignac number, because 10101221011211 - 2²² = 10101216816907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10101221011213) 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, 48460265 + ... + 48668261.

It is an arithmetic number, because the mean of its divisors is an integer number (689879654478).

Almost surely, 2^{10101221011211} is an apocalyptic number.

10101221011211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10101221011211 is a deficient number, since it is larger than the sum of its proper divisors (936853460437).

10101221011211 is a wasteful number, since it uses less digits than its factorization.

10101221011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215422.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10101221011211 its reverse (11211012210101), we get a palindrome (21312233221312).

The spelling of 10101221011211 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, eleven thousand, two hundred eleven".