220021211226101 has 2 divisors, whose sum is σ = 220021211226102. Its totient is φ = 220021211226100.

The previous prime is 220021211226083. The next prime is 220021211226109. The reversal of 220021211226101 is 101622112120022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218644308463876 + 1376902762225 = 14786626^2 + 1173415^2 .

It is a cyclic number.

It is not a de Polignac number, because 220021211226101 - 2²² = 220021207031797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220021211226109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010605613050 + 110010605613051.

It is an arithmetic number, because the mean of its divisors is an integer number (110010605613051).

Almost surely, 2^{220021211226101} is an apocalyptic number.

It is an amenable number.

220021211226101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021211226101 is an equidigital number, since it uses as much as digits as its factorization.

220021211226101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 220021211226101 its reverse (101622112120022), we get a palindrome (321643323346123).

The spelling of 220021211226101 in words is "two hundred twenty trillion, twenty-one billion, two hundred eleven million, two hundred twenty-six thousand, one hundred one".