120021101211 has 32 divisors (see below), whose sum is σ = 177210063360. Its totient is φ = 71648825600.

The previous prime is 120021101203. The next prime is 120021101231. The reversal of 120021101211 is 112101120021.

It is not a de Polignac number, because 120021101211 - 2³ = 120021101203 is a prime.

It is a super-2 number, since 2×120021101211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120021101231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 694741 + ... + 850121.

It is an arithmetic number, because the mean of its divisors is an integer number (5537814480).

Almost surely, 2^120021101211 is an apocalyptic number.

120021101211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120021101211 is a deficient number, since it is larger than the sum of its proper divisors (57188962149).

120021101211 is a wasteful number, since it uses less digits than its factorization.

120021101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155747.

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

Adding to 120021101211 its reverse (112101120021), we get a palindrome (232122221232).

The spelling of 120021101211 in words is "one hundred twenty billion, twenty-one million, one hundred one thousand, two hundred eleven".