1220100021053 has 2 divisors, whose sum is σ = 1220100021054. Its totient is φ = 1220100021052.

The previous prime is 1220100021013. The next prime is 1220100021067. The reversal of 1220100021053 is 3501200010221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1217972689924 + 2127331129 = 1103618^2 + 46123^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220100021053 - 2²⁴ = 1220083243837 is a prime.

It is a super-2 number, since 2×1220100021053² (a number of 25 digits) contains 22 as substring.

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 (1220100021013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610050010526 + 610050010527.

It is an arithmetic number, because the mean of its divisors is an integer number (610050010527).

Almost surely, 2^{1220100021053} is an apocalyptic number.

It is an amenable number.

1220100021053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220100021053 is an equidigital number, since it uses as much as digits as its factorization.

1220100021053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 1220100021053 its reverse (3501200010221), we get a palindrome (4721300031274).

The spelling of 1220100021053 in words is "one trillion, two hundred twenty billion, one hundred million, twenty-one thousand, fifty-three".