101220011211 has 16 divisors (see below), whose sum is σ = 147264979968. Its totient is φ = 61330514400.

The previous prime is 101220011147. The next prime is 101220011237. The reversal of 101220011211 is 112110022101.

It is not a de Polignac number, because 101220011211 - 2⁶ = 101220011147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101220011251) 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, 235420 + ... + 507801.

It is an arithmetic number, because the mean of its divisors is an integer number (9204061248).

Almost surely, 2^101220011211 is an apocalyptic number.

101220011211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101220011211 is a deficient number, since it is larger than the sum of its proper divisors (46044968757).

101220011211 is a wasteful number, since it uses less digits than its factorization.

101220011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747362.

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

Adding to 101220011211 its reverse (112110022101), we get a palindrome (213330033312).

The spelling of 101220011211 in words is "one hundred one billion, two hundred twenty million, eleven thousand, two hundred eleven".