100021110220949 has 2 divisors, whose sum is σ = 100021110220950. Its totient is φ = 100021110220948.

The previous prime is 100021110220907. The next prime is 100021110221059. The reversal of 100021110220949 is 949022011120001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95012099182225 + 5009011038724 = 9747415^2 + 2238082^2 .

It is a cyclic number.

It is not a de Polignac number, because 100021110220949 - 2¹⁶ = 100021110155413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100021110220649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010555110474 + 50010555110475.

It is an arithmetic number, because the mean of its divisors is an integer number (50010555110475).

Almost surely, 2^{100021110220949} is an apocalyptic number.

It is an amenable number.

100021110220949 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021110220949 is an equidigital number, since it uses as much as digits as its factorization.

100021110220949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 100021110220949 in words is "one hundred trillion, twenty-one billion, one hundred ten million, two hundred twenty thousand, nine hundred forty-nine".