210120101201011 has 16 divisors (see below), whose sum is σ = 220067711861760. Its totient is φ = 200240172887040.

The previous prime is 210120101200973. The next prime is 210120101201069. The reversal of 210120101201011 is 110102101021012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210120101201011 - 2¹⁷ = 210120101069939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210120101200982 and 210120101201000.

It is not an unprimeable number, because it can be changed into a prime (210120101201081) 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, 608037171 + ... + 608382643.

It is an arithmetic number, because the mean of its divisors is an integer number (13754231991360).

Almost surely, 2^{210120101201011} is an apocalyptic number.

210120101201011 is a deficient number, since it is larger than the sum of its proper divisors (9947610660749).

210120101201011 is a wasteful number, since it uses less digits than its factorization.

210120101201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443346.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 210120101201011 its reverse (110102101021012), we get a palindrome (320222202222023).

The spelling of 210120101201011 in words is "two hundred ten trillion, one hundred twenty billion, one hundred one million, two hundred one thousand, eleven".