Search a number
-
+
1111102221197 is a prime number
BaseRepresentation
bin10000001010110010110…
…110100110101110001101
310221012221121212001002102
4100022302312212232031
5121201014132034242
62210233332404445
7143163102023243
oct20126266465615
93835847761072
101111102221197
11399241268111
1215b409a76725
1380a12c43427
143bac5b86793
151dd804d2e32
hex102b2da6b8d

1111102221197 has 2 divisors, whose sum is σ = 1111102221198. Its totient is φ = 1111102221196.

The previous prime is 1111102221161. The next prime is 1111102221259. The reversal of 1111102221197 is 7911222011111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1097740248361 + 13361972836 = 1047731^2 + 115594^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111102221197 - 236 = 1042382744461 is a prime.

It is a super-2 number, since 2×11111022211972 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111102271197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555551110598 + 555551110599.

It is an arithmetic number, because the mean of its divisors is an integer number (555551110599).

Almost surely, 21111102221197 is an apocalyptic number.

It is an amenable number.

1111102221197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111102221197 is an equidigital number, since it uses as much as digits as its factorization.

1111102221197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 29.

The spelling of 1111102221197 in words is "one trillion, one hundred eleven billion, one hundred two million, two hundred twenty-one thousand, one hundred ninety-seven".