211220001302033 has 4 divisors (see below), whose sum is σ = 211224039900468. Its totient is φ = 211215962703600.

The previous prime is 211220001302021. The next prime is 211220001302041. The reversal of 211220001302033 is 330203100022112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 125684009748544 + 85535991553489 = 11210888^2 + 9248567^2 .

It is a cyclic number.

It is not a de Polignac number, because 211220001302033 - 2¹² = 211220001297937 is a prime.

It is a super-2 number, since 2×211220001302033² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211220001301996 and 211220001302014.

It is not an unprimeable number, because it can be changed into a prime (211220001302053) 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, 2019220766 + ... + 2019325367.

It is an arithmetic number, because the mean of its divisors is an integer number (52806009975117).

Almost surely, 2^{211220001302033} is an apocalyptic number.

It is an amenable number.

211220001302033 is a deficient number, since it is larger than the sum of its proper divisors (4038598435).

211220001302033 is an equidigital number, since it uses as much as digits as its factorization.

211220001302033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038598434.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 211220001302033 its reverse (330203100022112), we get a palindrome (541423101324145).

The spelling of 211220001302033 in words is "two hundred eleven trillion, two hundred twenty billion, one million, three hundred two thousand, thirty-three".