10221111098977 has 2 divisors, whose sum is σ = 10221111098978. Its totient is φ = 10221111098976.

The previous prime is 10221111098959. The next prime is 10221111099011. The reversal of 10221111098977 is 77989011112201.

10221111098977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9999610030656 + 221501068321 = 3162216^2 + 470639^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221111098977 - 2²³ = 10221102710369 is a prime.

It is a super-2 number, since 2×10221111098977² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10221111098977.

It is not a weakly prime, because it can be changed into another prime (10221111098477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110555549488 + 5110555549489.

It is an arithmetic number, because the mean of its divisors is an integer number (5110555549489).

Almost surely, 2^{10221111098977} is an apocalyptic number.

It is an amenable number.

10221111098977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221111098977 is an equidigital number, since it uses as much as digits as its factorization.

10221111098977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 49.

The spelling of 10221111098977 in words is "ten trillion, two hundred twenty-one billion, one hundred eleven million, ninety-eight thousand, nine hundred seventy-seven".