1220211106853 has 2 divisors, whose sum is σ = 1220211106854. Its totient is φ = 1220211106852.

The previous prime is 1220211106823. The next prime is 1220211106927. The reversal of 1220211106853 is 3586011120221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 790166321569 + 430044785284 = 888913^2 + 655778^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220211106853 - 2⁶ = 1220211106789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220211106823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610105553426 + 610105553427.

It is an arithmetic number, because the mean of its divisors is an integer number (610105553427).

Almost surely, 2^{1220211106853} is an apocalyptic number.

It is an amenable number.

1220211106853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220211106853 is an equidigital number, since it uses as much as digits as its factorization.

1220211106853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 1220211106853 in words is "one trillion, two hundred twenty billion, two hundred eleven million, one hundred six thousand, eight hundred fifty-three".